separationn.
/ˌsɛpəˈreɪʃn/, U.S. /ˌsɛpəˈreɪʃən/ 1.
a. The action of separating or parting, of setting or keeping apart; the state of being separated or parted. †to make separation, to make a severance or division.
ΘΚΠ
the world > relative properties > wholeness > mutual relation of parts to whole > separation > [noun]
asunderingeOE
sheddingc1175
twinning?c1225
departingc1300
sunderinga1325
to-dighting1340
partingc1350
disseverancec1374
divisionc1374
severinga1382
departitionc1400
separation1413
sunderance1435
departisonc1440
deceperationa1450
severance1467
dissevering1488
dissever?1507
departurec1515
dividing1526
partition1530
sejunction1532
separatinga1557
sequestration1567
decision1574
divorce1593
disseveration16..
dissevermenta1603
sunderment1603
disparting1611
disunition1611
singling1625
divide1642
severation1649
concisure1656
department1677
secretion1696
abgregation1730
disengagement1791
disassociation1825
dispartment1869
dissociation1877
secernment1894
breakaway1897
delinkage1973
the world > relative properties > wholeness > mutual relation of parts to whole > separation > separate, come, or go apart [verb (intransitive)] > make or cause a separation
to make separation1413
departa1425
separate1560
part1611
sever1611
the world > relative properties > wholeness > mutual relation of parts to whole > separation > [noun] > quality or condition of being separate
separateness1635
abstractedness1647
separation1650
asunderness1843
separativeness1901
1413 Pilgr. Sowle (1483) iv. xix. 64 And so the tyme come that seperacion shold be made bitwene this swete appel and this Appeltre and so it felle to the erthe.
1526 W. Bonde Pylgrimage of Perfection i. sig. Dvv Saynt Austen sayth: that the passage of the children of Israel from egipt, signifyeth the separacion of mannes soule from synne by..baptyme.
?1556 N. Smyth tr. Herodian Hist. vi. f. 73 The Illirian nacions, dwellynge in a smale streyte,..doo onelye make seperacion betwene Italye, and Germanye.
a1616 W. Shakespeare Winter's Tale (1623) i. i. 26 Since their more mature Dignities, and Royall Necessities, made seperation of their Societie. View more context for this quotation
1650 Bp. J. Taylor Funeral Serm. Countess Carbery in Wks. (1831) IV. 110 From whence it follows, that because the body casts fetters and restraints..on the soul, that the soul is much freer in the state of separation.
1684 T. Burnet Theory of Earth i. v. 63 The Chaos, when it was first set on work, ran all into divisions, and separations of one Element from another.
1788 E. Gibbon Decline & Fall V. l. 184 The separation of the Arabs from the rest of mankind, has accustomed them to confound the ideas of stranger and enemy.
a1807 W. Wordsworth Prelude (1959) xiii. 500 The mind Learns..to keep In wholesome separation the two natures.
1841 E. Miall in Nonconformist 1 2 The entire separation of Church and State is really their object.
1871 B. Jowett in tr. Plato Dialogues IV. 89 After six years of age there shall be the separation of the sexes.
1905 R. Bagot Passport xxiv. 255 Nothing but a separation from her lover..could accomplish this object.
b. U.S. Resignation or dismissal from employment, a university, etc.; discharge from the armed forces.
ΘΚΠ
society > authority > office > removal from office or authority > [noun]
off-puttinga1387
supplantationa1393
deposal1397
deposition1399
amotion1441
privation1444
subversion1470
deposing1480
dispointment1483
quietus est1530
cassing1550
deprivation1551
remove1553
destitution1554
depose1559
abdication1574
dismissionc1600
renvoy1600
displacement1611
deprivement1630
quietus1635
removal1645
deposure1648
displacing1655
cashierment1656
discarding1660
amoval1675
depriving1705
superannuation1722
separation1779
ouster1782
disestablishment1806
dismissal1849
epuration1883
deprival1886
purge1893
society > occupation and work > lack of work > [noun] > dismissal or discharge
discharginga1398
discharge1523
quietus est1530
conduction1538
cassing1550
remove1553
destitution1554
mittimus1596
dismissionc1600
quietus1635
removal1645
cashierment1656
separation1779
dismissing1799
dismissala1806
to give (a person) the sack1825
bullet1841
congee1847
decapitation1869
G.B.1880
the shove1899
spear1912
bob-tail1915
severance1941
sacking1958
termination1974
1779 T. Jefferson Let. 27 Mar. in Papers (1950) II. 244 The separation of these troops would be a breach of public faith.
1897 C. M. Flandrau Harvard Episodes 229 He would feel [sorrow] at what the official college gracefully terms the ‘separation’ of Billy from the University.
1923 J. D. Hackett Labor Terms in Managem. Engin. May Separation, the termination of employment, either voluntary or involuntary, at the instance of the employer or worker.
1955 Univ. of Va. News Letter 15 June 1/2 Just as births exceed deaths to yield an expanding population, so new entrants exceed separations through deaths and retirements to yield an expanding labor force.
1976 Washington Post 19 Apr. c15/10 (advt.) Excellent opportunity in proposal writing for former surface Naval officer who completed 1 or 2 tours prior to separation.
c. separation of powers n. Politics the vesting of the legislative, executive, and judiciary powers of government in separate bodies.
ΘΚΠ
society > authority > rule or government > a or the system of government > systems based on specific principle > [noun] > based on separation of powers > separation of powers
separation of powers1896
1748 C.-L. de S. de Montesquieu De l'Esprit des Loix I. xi. vi. 245 Il n'y a point encore de Liberté, si la puissance de juger n'est pas séparée de la puissance législative & de l'exécutrice.
1788 A. Hamilton in A. Hamilton et al. Federalist II. xlvii. 92 (heading) The Meaning of the Maxim, which requires a Separation of the Departments of Power, examined and ascertained.]
1896 A. L. Lowell Govts. & Parties in Continental Europe I. i. 55 The Declaration of The Rights of Man proclaimed in 1789 that a community in which the separation of powers was not established had no constitution.
1921 J. Bryce Mod. Democracies II. ii. xxxix. 23 No official of the Federal Government is eligible to sit in Congress, no official of the Government of a State to sit in its legislature. This provision, a tribute to the famous doctrine of the Separation of Powers, was meant to prevent the Executive from controlling the Legislature.
1973 N.Y. Times 15 Aug. 36/1 President Nixon's attorneys..asserted that the constitutional separation of powers precluded the courts from commanding him to make those tapes available to a grand jury.
2. The action of separating oneself, withdrawing, or parting company. †to make separation, to withdraw, go apart.
ΘΚΠ
the world > relative properties > wholeness > mutual relation of parts to whole > separation > separate, come, or go apart [verb (intransitive)]
to-dealeOE
shedc1000
asunderOE
to-twemea1225
sunderc1225
twin?c1225
atwin?a1400
to make separationc1450
separe1490
twain15..
sever1545
unsever1609
spread1611
separate1638
disclaim1644
to come apart1764
to go separate ways1774
twine1886
society > society and the community > social relations > lack of social communication or relations > separation or isolation > separate [verb (intransitive)]
dealc1000
to make separationc1450
to break up1535
diverta1575
disjoina1642
unherd1661
separate1690
to cut (also slip) the painter1699
enisle1852
segregate1863
bust1880
isolate1988
the world > relative properties > wholeness > mutual relation of parts to whole > separation > [noun] > separation or cutting off from something
separationc1450
abscission1625
unhinging1661
society > society and the community > social relations > lack of social communication or relations > separation or isolation > [noun] > separating oneself or parting company
separationc1450
society > society and the community > social relations > lack of social communication or relations > separation or isolation > [noun]
sequestration1565
soleness1587
removednessa1616
sequestera1616
segregation1668
separation1685
insulation1798
isolation1833
social isolation1833
asideness1880
purdah1912
lockdown1984
c1450 Cov. Myst. (Shaks. Soc.) 240 Whan the Soule from the body xal make Separacion.
1623 E. Jessop Discov. Errors Anabaptists 85 Here we see..that a separation ought to be made from all kind of Idolatry and vnrighteousnes of the heathen.
1637 J. Fletcher & P. Massinger Elder Brother iii. v. sig. F2v Remove her where you will, I walke along stil, For, like the light we make no separation.
1685 J. Scott Christian Life: Pt. II I. iii. 146 As separating into Parties..exposes the Separatists themselves to great Temptations to Atheism, so it doth those also who..stand ingaged on neither Part of the Separation.
1847 W. M. Thackeray Vanity Fair (1848) xxiv. 199 When a separation from those we love is imminent, [we] cannot rest until the parting be over.
1856 J. A. Froude Hist. Eng. (1858) I. iv. 356 It was the first active movement towards a separation from Rome.
1886 National Rev. Mar. 83 With Mr. Parnell..Separation is a means to an end.
3. Cessation of conjugal cohabitation, either by mutual consent of the parties or imposed by a judicial decree granted at the suit of one of them. judicial separation n. the name now given to the ‘divorce a mensa et thoro’ of the older English law: see divorce n. 1.
ΘΚΠ
society > society and the community > kinship or relationship > marriage or wedlock > divorce or dissolution > [noun] > separation
separation1600
legal separation1668
society > society and the community > kinship or relationship > marriage or wedlock > divorce or dissolution > [noun]
divorce1377
unbinding1382
divorcing1387
partising1496
divorcement1526
partitiona1540
separatinga1557
divorcy1565
divorsion1596
diffarreation1623
stand-away1704
talak1791
annulment1800
judicial separation1857
khula1884
splitsville1951
1600 J. Chamberlain Let. 22 Dec. (1939) I. 114 But in conclusion the woman scaped better cheape then was looked for, having only sentence of separation a mensa et thoro.
1623 W. Shakespeare & J. Fletcher Henry VIII ii. i. 148 Did you not of late dayes heare A buzzing of a Separation Betweene the King and Katherine? View more context for this quotation
1700 T. Brown Amusem. Serious & Comical vii. 80 The usual Causes of Separation is assign'd as the Fault of the Wife.
1749 H. Fielding Tom Jones VI. xviii. xi. 268 In order to prevail with him..to consent to a Separation from his Wife. View more context for this quotation
1848 W. M. Thackeray Vanity Fair lxv. 596 Was'nt there a scandal about their separation?
1857 Act 20 & 21 Victoria c. 85 §16 A Sentence of Judicial Separation (which shall have the Effect of a Divorce à Mensâ et Thoro under the existing Law..) may be obtained, either by the Husband or the Wife, on the ground of Adultery [etc.].
ΘΚΠ
society > faith > aspects of faith > nonconformity > [noun] > person > group
separation1599
meeting-folks1835
meeting-goers1839
1599 H. Jacob Def. Churches Eng. (title page) Two treatises against the reasons..of F. Johnson, and others of the separation commonly called Brownists.
1608 R. Bernard Christian Advert. 163 Positions..maintained by some godlie Ministers of the Gospell against those of the Separation.
1616 B. Jonson Alchemist (rev. ed.) iii. i. 2 in Wks. I Such rebukes we of the Separation Must beare, with willing shoulders.
1623 E. Jessop Discov. Errors Anabaptists 80 Which is the best ordination and succession, the Church of Rome..hath..and which the separations doe contend for.
1710 S. Palmer Moral Ess. Prov. 141 This is both a court and a church-game, and the separation it self isn't free from it.
ΘΚΠ
the world > relative properties > wholeness > incompleteness > part of whole > [noun] > one of the parts into which anything is divided
dealinga1300
divisionc1374
partc1392
spacec1392
long divisionc1400
severingc1400
skyvaldc1400
foddinga1425
panelc1450
partition1561
roomstead1600
canton1601
separation1604
share1643
scissurea1667
cutting1726
departmenta1735
segment1762
compartment1793
distribution1829
segregation1859
dept.1869
section1875
tmema1891
1604 E. Grimeston tr. J. de Acosta Nat. & Morall Hist. Indies vi. ii. 435 Every portion of these foure had thirteene separations which had all their signs or particular figures.
1788 J. Hutton in Trans. Royal Soc. Edinb. 1 246 By this means the separations of the stone diminish, in a progression from the centre towards the circumference.
6. The place where two or more objects separate or are divided from one another; a parting, line of division.
ΘΚΠ
the world > space > relative position > condition or fact of being interjacent > [noun] > that which is interjacent > and separates two things
horizona1387
divisionc1400
long divisionc1400
departinga1475
departure1523
separation1615
separatress1630
intercept1821
distancer1884
the world > relative properties > wholeness > mutual relation of parts to whole > separation > action of dividing or divided condition > [noun] > point or line of division
section?a1560
separation1615
1615 H. Crooke Μικροκοσμογραϕια 435 In woemen they are diuided by a line, which separation the Greeks call λύσωμα.., in English we cal it the shed of the haire.
1839 W. Chambers Tour Rhine 47/1 We now come to the separation of the Maas and Waal branches of the river.
1851 S. P. Woodward Man. Mollusca i. 48 In the brachiopoda the separation is horizontal.
7. Something that separates or effects a division or partition; an interval or break between two objects; a cause of separating. rare.
ΘΚΠ
the world > space > relative position > condition or fact of being interjacent > [noun] > that which is interjacent > and separates two things > a partition
interclose1344
enterclosea1430
partition1545
distinction1578
membrane1631
septuma1638
diaphragm1660
midriff1660
cloison1693
separationc1720
dispartation1779
separator1881
the world > relative properties > wholeness > mutual relation of parts to whole > separation > [noun] > one who or that which separates > that which
partition1681
separationc1720
c1720 N. Dubois & G. Leoni tr. A. Palladio Architecture II. xvii. 36 The walls, which make the separation of every apartment.
1728 R. Morris Ess. Anc. Archit. 51 Some omit this Member, and have only the second Fascia, projected..beyond..the first, without any Separation.
1821 Rich Journ. Persepolis 25 Aug. in Babylon & P. (1839) 249 The separation or stop in the first [kind of Cuneiform inscription] is [an oblique wedge].
1906 H. Belloc Hills & Sea 94 These dykes of the Fens are accursed things: they are the separation of friends and lovers.
ΘΚΠ
the world > matter > alchemy > alchemical processes > [noun] > miscellaneous other processes
englutingc1386
fermentationc1386
conjunctionc1400
cibation1471
separation1471
wheel1471
putrefactiona1550
termination1584
martyrization1612
restinction1617
illinition1678
immersion1683
interfection1727
1471 G. Ripley Compound of Alchymy iii. ii, in E. Ashmole Theatrum Chem. Britannicum (1652) 139 And Separacyon ys callyd by Phylosophers dyffynycyon Of the sayd Elements tetraptatyve dyspersyon.
1626 F. Bacon Sylua Syluarum §3 It seemeth Percolation..is a good kinde of Separation.
1626 F. Bacon Sylua Syluarum §798 I remember to haue heard..that a Fifteenth Part of Siluer, incorporate with Gold, will not be Recouered by any Water of Separation; Except you put a Greater Quantity of Siluer, to draw to it the Lesse; which..is the last Refuge in Separations.
1661 R. Boyle Sceptical Chymist iv. 276 What Disparity there may be between the salts and sulphurs of Metals and other Minerals, I am not my self experienced enough in the separations and examens of them, to venture to determine.
1728 E. Chambers Cycl. at Water A farther Use is in the making Separations of oily from saline Parts.
1728 E. Chambers Cycl. at Water Water of Separation, or Depart, is only Aqua fortis; thus called, because serving to separate Gold from Silver.
9. Astronomy and Astrology. (See quot. 1819.)
ΘΚΠ
the world > the universe > planet > planetary movement > [noun] > other movements
translation of (the) light and nature?1583
separation1595
ingress1603
transit1644
libration1670
1595 J. Davis Seamans Secrets i. sig. A3v Betweene the change and the full, it is called the Moones seperation from the Sunne.
1819 J. Wilson Compl. Dict. Astrol. 366 Separation, when two planets having been in partile configuration are beginning to separate. It is distinguished into simple and mutual.
10. Medicine. The process by which dead tissue becomes detached from the sound flesh.
ΘΚΠ
the world > health and disease > ill health > a disease > diseases of tissue > [noun] > alteration of tissue > separation of dead tissue
separation1617
1617 J. Woodall Surgions Mate Termes 347 Separation is, whereby parts distracted are separated euery one alike hauing his seuerall being in himselfe.
1672 R. Wiseman Treat. Wounds ii. 14 It being a good Medicament to hasten separation of the Escars.
1800 Med. & Physical Jrnl. 3 449 I know two or three cases where women have lost their lives by waiting too long for a spontaneous separation [sc. of the placenta].
1801 Med. & Physical Jrnl. 5 80 No sloughing or separation took place, for the action of the absorbents was equal to the removal.
ΘΚΠ
society > travel > travel by water > directing or managing a ship > [noun] > course > amount of change of longitude
departure1669
separation1704
1704 J. Harris Lexicon Technicum I Separation, with some Writers of Navigation, is the same with what is more usually called, the Departure; that is, a Ships Difference of Longitude from any place, or from another Ship.
12. Mathematics. The division of a partition into component partitions. Cf. separate n. 4.
ΚΠ
1888 MacMahon in Proc. London Math. Soc. 19 243 It becomes necessary to consider the separation of such a partition into component partitions.
1888 MacMahon in Proc. London Math. Soc. 19 254 In general, if there are θ separations of any partition and ϕ species of separation, there must be θ–ϕ syzygies between the θ separations.
13. Horticulture. (See quot. 1891.)
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [noun] > others
adosculation1682
autogeny?1818
gemmation1836
parthenogenesis1849
virgin production1849
rejuvenescence1853
agamogenesis1857
monogeny1857
autogenesis1858
homogenesis1858
proliferation1864
monogenesis1866
swarming1867
paedogenesis1870
monogony1873
virginal generation1879
division1880
monogenesy1890
parthenogeny1890
anisogamy1891
isogamy1891
paragamy1891
separation1891
paedogenesis1892
parthenism1892
heterogamy1894
thelytoky1895
flagellation1898
cytogamy1899
pseudogamy1900
tychoparthenogenesis1900
syngamy1904
pseudogamy1907
ectogenesis1909
paedogamy1910
apomixis1913
progenesis1934
agamospermy1939
mixis1944
somatogamy1949
decapitation-
the world > food and drink > farming > gardening > management of plants > propagation of plants > [noun] > by separation
separation1891
1891 L. H. Bailey Nursery-bk. (1896) 26 Separation, or the multiplication of plants by means of naturally detachable vegetative organs, is effected by means of bulbs, bulbels, bulb-scales, bulblets, corms, tubers, and sometimes by buds.
14. Photography and Printing.
a. Each of three or more monochrome reproductions of a coloured picture, made in different colours in such a way that they combine to reproduce the full colour of the original.
ΘΚΠ
society > leisure > the arts > visual arts > photography > a photograph > [noun] > colour
heliochrome1853
colour photograph1857
ivory-type1873
heliochromotype1875
photochrome1878
mezzograph1890
sepia print1892
chromogram1893
kromogram1897
autochrome1907
separation1922
colour snap1928
1922 Jrnl. Optical Soc. Amer. 6 570 The pigments or dyes required for the satisfactory rendering..of photographic ‘color separations’.
1933 T. S. Barber Art & Pract. Printing IV. xiv. 163 The Three-colour Process requires three half-tones, made from photographic colour separations.
1967 R. R. Karch & E. J. Buber Graphic Arts Procedures: Offset Processes v. 170 In making the separation from a colored original or transparency, the circular glass halftone screen..is used.
1972 Physics Bull. Sept. 533/3 An original colour picture must first be processed to obtain four continuous tone ‘separations’, that is images on film which present the red, green and blue content of the original together with a ‘key’.
b. The process of obtaining a set of monochrome reproductions of a coloured picture in each of which the tones correspond to the proportions of a particular colour in the original.
ΘΚΠ
society > leisure > the arts > visual arts > photography > [noun] > colour
heliochromy1855
photochromy1878
colour separation1904
separation1924
1924 L. P. Clerc Ilford Man. Process Work xxii. 206 (heading) The practice of colour separation.
1930 H. A. Groesbeck Pract. Photo-engraving 61 This is called ‘color separation’ and comes in very handy if a color is to be completely cut out.
1931 F. R. Newens Technique Colour Photogr. iii. 25 This tri-pack gives extremely good colour separation.
1949 D. Melcher & N. Larrick Printing & Promotion Handbk. 48/2 Color separation is the technique by which the colors of the original art work..are sorted out so that all the reds appear in the red plate, the blue and the shades of blue in the blue plate, etc.
1949 D. Melcher & N. Larrick Printing & Promotion Handbk. 49/1 Flat-color jobs present no problem... Full-color originals are more difficult. Here the printer may do his separations by the fake process method or by the process-color method.
1974 Encycl. Brit. Macropædia XIV. 304/2 In the direct method [of making colourplates], screen negatives are prepared directly from the copy through the colour-separation filters and a halftone screen.
15. Physics and Aeronautics. The separation of the boundary layer from the surface of a body moving relative to the surrounding fluid.
ΚΠ
1926 H. Glauert Elem. Aerofoil & Airscrew Theory viii. 100 When two parallel layers of fluid are moving in the same direction with different velocities, the surface of separation is a vortex sheet.
1935 K. D. Wood Techn. Aerodynamics ii. 46 At zero lift, there is commonly a certain amount of separation under the nose of the airfoil.
1949 O. G. Sutton Sci. of Flight ii. 40 The air stream has found it difficult to turn the corner... In technical language the flow separates. We shall see later that separation is of immense importance in all problems of aerodynamics.
1978 D. Küchemann Aerodynamic Design of Aircraft ii. 37 The most important boundary-layer phenomenon is flow separation.
16. Distinction or difference between the signals carried by the two channels of a stereophonic system; a measure of this.
ΚΠ
1960 Markell & Stanton Installing Hi-Fi Systems i. 11 The portion of the room in which the maximum stereo effect is heard is fairly limited, and complete separation between the sound signals at the ears of the listener is impossible in a practical situation.
1962 Times 5 July 15/6 In general quality the discs were still preferable although on the tapes the stereo ‘separation’ was more marked.
1974 P. K. Harvey & K. J. Bohlman Stereo F.M. Radio Handbk. vi. 129 Some adjustment over the degree of cross-coupling may be provided by a preset control..labelled separation.
1975 G. J. King Audio Handbk. viii. 185 For good stereo image placement the separation should not be less than 20 dB over the important part of the spectrum.
Compounds
C1. General attributive.
separation funnel n.
ΚΠ
1881 J. Tyndall Ess. Floating Matter of Air iii. 171 A ‘separation-funnel’ with a glass stopcock.
separation-scene n.
ΚΠ
1848 W. M. Thackeray Vanity Fair lxvi. 600 As for the separation-scene from the child, while Becky was reciting it, Emmy retired altogether behind her pocket handkerchief.
C2.
separation allowance n. in the war of 1914–18, an allowance made by a soldier, with a large augmentation from the Government, for his wife or dependants.
ΚΠ
1914 Hansard's Parl. Deb. 26 Nov. 1296 Separation allowances are being paid according to the scales laid down in the White Paper.
separation anxiety n. Psychology anxiety provoked in a child by the threat or actuality of separation from its mother or mother substitute; also transferred.
ΚΠ
1943 W. R. D. Fairbairn in Brit. Jrnl. Med. Psychol. 19 340/2 The problem of separation-anxiety in the soldier is anticipated under a totalitarian regime by a previous exploitation of infantile dependence.
1973 J. Bowlby Attachment & Loss II. vi. 95 Despite Freud's increasing insistence on the key role of separation anxiety in neurosis, there has been marked reluctance to adopt his ideas.
1977 Sunday Mail (Brisbane) 23 Oct. 24/7 Separation Anxiety: The child fears the parent will abandon him. Newson and Newson showed that very many parents used this as a threat.
separation factor n. Nuclear Engineering the ratio of the concentration of a particular isotope after a process of enrichment to the concentration before; also, the ratio of the concentrations in the two mixtures produced by the process.
ΚΠ
1945 H. D. Smyth Gen. Acct. Devel. Atomic Energy Mil. Purposes ix. 94 In nearly every process a high separation factor means a low yield, a fact that calls for continual compromise.
1978 Sci. Amer. Aug. 31/3 A typical separation factor for an early machine was 1·25, which means that if the fraction of uranium 235 in the feed gas is 0·71 percent, as it is in natural uranium, the product contains ·794 uranium 235 and the waste contains ·635 percent.
separation negative n. a separation (sense 14a above) in the form of a photographic negative.
ΚΠ
1931 F. R. Newens Technique Colour Photogr. iii. 25 Although it is possible to produce the three-colour separation negatives by a single exposure, either in a one-exposure tricolour camera, or by means of a film tri-pack.., neither method is at present readily available.
1957 P. Jenkins Colour Separation Negatives 30 A fundamental rule in separation-negative making is that any neutral (grey, white, or black) should be reproduced as an equal density on each of the three negatives.
1974 A. Sussman Amateur Photographer's Handbk. (ed. 8) xviii. 478 The problem of separation negatives, so far as the amateur is concerned, was overcome in 1935 when Eastman Kodak introduced Kodachrome film.
separation-order n. an order of court for judicial separation (see 3).
ΘΚΠ
society > society and the community > kinship or relationship > marriage or wedlock > divorce or dissolution > [noun] > separation > order for
separation-order1887
1887 Cassell's Encycl. Dict. VI. at Separation A separation order can also be granted in England by a magistrate on proof of cruelty.
1907 ‘J. Halsham’ Lonewood Corner 74 The wife and her mangle presently get a separation-order.
separation pay n. in the war of 1914–18, an allowance made by a soldier, with a large augmentation from the Government, for his wife or dependants.
ΚΠ
1919 Daily Mail Year Bk. 48/2 Separation Pay.
separation plant n. an installation for the separation of isotopes of a chemical element.
ΘΚΠ
the world > matter > physics > atomic nucleus > nuclear fission > nuclear explosion > [noun] > separation plant
separation plant1945
1945 H. D. Smyth Gen. Acct. Devel. Atomic Energy Mil. Purposes viii. 84 The principal installations constructed at the Clinton Laboratory site were the pile and the separation plant.
1974 Encycl. Brit. Macropædia XIII. 325/1 Groves arranged contracts for a gaseous diffusion separation plant, a plutonium production facility and a calutron pilot plant.
separation point n. Physics and Aeronautics a point on a surface at which boundary-layer separation begins.
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1946 A. W. Sherwood Aerodynamics vii. 101 If the velocity of flow over the sphere is increased, the local Reynolds number Rl for any point in the boundary layer is proportionally increased, with a maximum value at the separation points.
1978 D. Küchemann Aerodynamic Design of Aircraft ii. 37 The flow lifts off the wall at a separation point where the skin friction becomes zero and the air flows backwards behind it.
This entry has not yet been fully updated (first published 1912; most recently modified version published online March 2022).
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