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单词 locus
释义

locusn.1

Brit. /ˈləʊkəs/, /ˈlɒkəs/, U.S. /ˈloʊkəs/
Inflections: Plural loci Brit. /ˈləʊsʌɪ/, /ˈləʊkʌɪ/, /ˈləʊki/, /ˈlɒki/, U.S. /ˈloʊsaɪ/, /ˈloʊkaɪ/, /ˈloʊki/.
Origin: Of multiple origins. Partly a borrowing from Latin. Partly formed within English, by clipping or shortening. Etymons: Latin locus ; locus standi n.
Etymology: < classical Latin locus place, position, location, opportunity, scope, topic, subject, earlier stlocus (attested by Quintilian and Paulus Festus), of unknown origin. In sense 3 after corresponding use in Latin rhetorical writers, after ancient Greek τόπος (see topos n.). In sense 4 short for locus standi n.The post-classical Latin phrase Calvariae locus (Vulgate; accusative Calvariae locum ), which shows the place name of Calvary (see Calvary n.) in the genitive case, occurs in English contexts from Old English onwards, apparently occasionally with substitution of an English form of the place name; compare especially quot. a1450:OE Homily: Invention of Cross (Auct. F.4.32) in M.-C. Bodden Old Eng. Finding of True Cross 85 Seo stow hatte Calvarie locum þe ure hælendes rod on gehealden is.a1225 (?OE) MS Lamb. in R. Morris Old Eng. Homilies (1868) 1st Ser. 127 His deorewurþe blod wes asced on stude þe is ihaten. caluarie locus.a1450 York Plays (1885) 318 A place here beside lorde, wolde I wedde-sette... Caluary locus men callis it.
1.
a. The place in which something is situated or occurs. In later use also: the effective or perceived location of something abstract.
ΘΚΠ
the world > space > place > position or situation > [noun]
stallc1000
logh11..
settlea1340
placea1375
steada1387
sitea1398
assizec1400
position?a1425
estal1480
stound1557
planting1585
location1592
positure1600
posture1605
seat1607
situs1629
ubi1630
ubiety1645
locus1648
locality1656
topography1658
whereness1674
lie1697
spot1769
locus standi1809
possie1916
ubicity1922
1648 R. Harris Two Lett. i. 2 I am still the same (whether you speake of the Locus or Officium) that then I was, when I Preached and Published that my Concio ad Clerum in your hands.
1695 J. Sage Princ. Cyprianic Age 91 His Locus and Gradus, his Station and Dignity, were so Conspicuous and Eminent, that His Presence would have provoked the Gentiles.
1715 G. Cheyne Philos. Princ. Relig.: Pt. II ii. ii. 118 Yet Space is not actually to be divided; or one part of it separated from another. Since it is the universal Locus of, and penetrates all Bodies.
1774 Ld. Kames Sketches Hist. Man II. iii. ii. 162 Gravesend defines motion... Yet this very author admits locus or place to signify a simple idea, incapable of a definition.
1874 R. W. Raymond Statistics Mines & Mining 516 These certificates were..entirely inadequate to determine the locus of the claims without parol testimony.
1876 ‘G. Eliot’ Daniel Deronda III. v. xxxix. 152 We all of us carry on our thinking in some habitual locus where there is a presence of other souls.
1894 A. B. Bruce St. Paul's Concept. Christianity vii. 155 This manner of handling the locus of justification is very open to criticism.
1899 T. C. Allbutt et al. Syst. Med. VII. 395 It is even uncertain how far the writing-centre has a locus apart from the region in which impressions..are registered.
1901 Dundee Advertiser 10 Jan. 4 In Dundee the fish trade is divided against itself on a miserable question of the locus of its market.
1908 W. E. Chancellor Our City Schools vii. 144 Democracy is solely an affirmation of the locus of power.
1946 A. Nelson Princ. Agric. Bot. xv. 338 The picture would in this case be one of delivery of carbohydrates from the locus of their formation to the tissue capable of forming oil.
2006 Wired Sept. 178/2 Record labels have always been the center of gravity in the industry—the locus of power, ideas, and money.
b. Genetics. A site or position on a chromosome at which a particular gene is located; a location within an individual gene, or within non-coding DNA. Also: the gene, base pair, or sequence itself.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > locus
locus1913
zygomere1966
1913 Jrnl. Exper. Zool. 15 591 White and eosin are allelomorphic to each other, that is, they occupy the same locus in the sex chromosome.
1915 T. H. Morgan et al. Mechanism Mendelian Heredity vii. 155 A mutant factor is located at a definite point in a particular chromosome; its normal allelomorph is supposed to occupy a corresponding position (locus) in the homologous chromosome.
1962 Lancet 6 Jan. 10/1 The colour-blind locus is thought to be about 10 units of crossing-over from the locus for hæmophilia and about 25 units from the locus for Duchenne's type of muscular dystrophy.
1970 Nature 25 July 342/1 Considerable numbers of gene loci are required to code for the primary structures of the immunoglobulin molecules made in any one organism.
1994 T. C. Fogarty Evolutionary Computing 213 Markers located in the non-coding loci of the action part (i.e. the otherwise non-interpreted part of the message) are used.
2009 N.Y. Times (Nexis) 22 Sept. a14 ‘They've matched three or four loci with each of those samples’, said Richard Bengtson, a homicide detective.
2. Mathematics. A geometric figure consisting of all those points satisfying a particular equation or other mathematical relation; the geometric figure which is formed by all the successive positions of a moving point, curve, etc.
ΘΚΠ
the world > relative properties > number > geometry > curve > [noun] > locus
locus1675
evolute1704
place1704
trajectory1795
syntractory1820
focal surface1828
synharmonic1850
syntractrix1852
pedal1862
umbilical focal conic1862
umbilical focal conic1862
stigmatic1863
synchronism1867
synchronous curve1867
Steinerian1873
tac-locus1873
strophoid1880
orthoptic locus1882
strophoidal1908
hypercycle1909
1675 J. Collins Let. 10 Apr. in H. Oldenburg Corr. (1977) XI. 258 The curve above drawne may represent the Locus of an AEquation which sometimes hath but one true Possible roote.
1728 E. Chambers Cycl. (at cited word) All Loci of the second Degree are Conic Sections.
1758 I. Lyons Treat. Fluxions iv. §99 The locus of a simple equation is always a right line.
1848 G. Salmon Treat. Conic Sections ii. 10 A single equation between the co-ordinates signifies a locus.
1879 W. K. Clifford Seeing & Thinking (1880) iv. 141 When a point moves along a line, that line is the locus of the successive positions of the moving point.
1942 C. H. Lehmann Analyt. Geom. xi. 229 The parametric equations of a specific locus are not unique.
1976 E. A. Dijksman Motion Geom. of Mechanisms 76 The envelope of a bar performing the elliptic motion..may be obtained in this way. In this particular case the locus of points obtained is called an astroid.
2008 D. F. Gray & S. W. Malone Macrofinancial Risk Anal. 315 For each of these respective values, we can plot the locus of equilibrium exchange rates.
3. Rhetoric. A subject, head, topic. Obsolete. rare.
ΘΚΠ
the mind > mental capacity > perception or cognition > faculty of ideation > topic, subject-matter > [noun]
thingeOE
evenOE
questionc1225
purposec1350
themec1380
mattera1387
reasonc1390
substancea1393
chapter1393
occasion1426
titlec1450
intentc1460
article1531
place1532
scope1549
subject1563
argumenta1568
string1583
matter subject1586
subject matter1587
qu.1608
haunt1622
seat1628
object matter1653
business1655
topic1728
locus1753
sub1779
ground1796
1753 Chambers's Cycl. Suppl. Locus, in rhetoric, a topic, or head, whence arguments are brought to prove the question in hand.
4. Law. = locus standi n. 1.
ΘΚΠ
society > law > legal capacity > [noun] > legal standing
locus standi1809
standing1844
locus1866
1866 J. H. Fawcett Treat. Court of Referees ii. 19 Parties seeking to oppose such amalgamation have been refused or accorded a locus, in proportion as their interests seem to the different committees to be affected by such amalgamation.
1891 Special Rep. Select Comm. London Water Commission Bill 41/1 in Parl. Papers 1890–91 (H.C. 334) XII. 269 The local authority of the district is always entitled to its locus to oppose the Bill.
1962 S. Afr. Law Rep. 4 638 The plaintiff, as the purchaser seeking to acquire the said property, alone had locus to apply for the issue to him of such a permit.
1973 Industr. Court Rep. 557 The Lord Advocate, as representing the Secretary of State for Employment, has a statutory locus in these appeals.
1992 All Eng. Law Rep. (Lexis) 1 (Queen's Bench: 778) 790 In a normal case (ie one without an injunction) there would be no question of a customer having locus in any court other than the Divisional Court.
2013 M. Ottley Company Law iv. 100 There are a limited number of cases where a shareholder, but not a creditor, has locus to sue to enforce the rights of the company.

Phrases

locus of control n. Psychology the notional point at which control of a person's life is perceived to lie, often classed as internal (when a person feels in control of his or her life and the events influencing it) or external (when a person believes life is governed by factors outside of his or her control).
ΘΚΠ
the mind > mental capacity > psychology > theory of psychoanalysis > libido > want of confidence > [noun] > degree of control
locus of control1953
1953 M. L. Farber in Jrnl. Psychol. 36 247 The impression emerges that the locus of control among the Americans is, in a way, more external than in the British.
1966 G. Mandler & D. L. Watson in C. D. Spielberger Anxiety & Behavior 286 A locus of control scale has been developed which differentiates individuals according to the degree to which they appraise themselves or the environment to control the occurrence of reinforcement.
1990 M. H. Stone Fate Borderline Patients 291 Those [patients] with an external locus of control respond to more highly structured therapies.
2011 Jrnl. Health & Social Behaviour 52 378/2 Racial awareness may enhance the stress of these class disadvantages..if it allows these adults to externalize their locus of control.
This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).

locusn.2

Brit. /ˈləʊkəs/, /ˈlɒkəs/, U.S. /ˈloʊkəs/
Forms: 1600s 1900s– locus, 1700s– locust, 1800s locuss.
Origin: Of uncertain origin.
Etymology: Origin uncertain; it is also unclear whether the two senses show the same word. In sense 1, perhaps an extended use of locust n. (compare forms at that entry), or perhaps < Spanish loco insane person (13th cent.; use as noun of loco mad, insane: see loco adj.) or its plural locos, with folk-etymological alteration by association with locust n., although the semantic motivation for association with that word is unclear. In sense 2, perhaps immediately < locus v.; an extended use of locust n. denoting a club or truncheon has alternatively been suggested (compare locust n. 7, locust club n. at locust n. Compounds 2, and see quot. 1986), although there is no evidence that this sense originated in U.S. English.
slang. Now rare.
I. Compounds.
1. locus ale n. Obsolete an intoxicating drink made from sugar cane.
ΘΚΠ
the world > food and drink > drink > intoxicating liquor > ale or beer > non-malted brews > [noun] > others
kvassa1556
locus ale1693
honey beer1731
maple beer1788
heath-ale1801
treacle beer1806
root beer1815
treacle alea1833
gale-beer1863
nettle beer1864
shimiyana1870
birch beer1883
parsnip beer1897
skokiaan1926
1693 T. P. Blount Nat. Hist. 146 The first of which [viz. scum of sugar-cane] that ariseth is little worth; but afterwards, what is scumm'd off, they make a very good drink of, called Locus-Ale, much used by the Servants in Jamaica.
1707 H. Sloane Voy. Islands I. Introd. p. lxii Locust-Ale is Cane-Juice clarified, mix'd with Rum.
II. Simple uses.
2. A drink which has been drugged so as to render a person stupefied or unconscious; any narcotic preparation. Cf. knock-out drops at knock-out adj. d.
ΘΚΠ
the world > physical sensation > use of drugs and poison > an intoxicating drug > [noun] > a) narcotic drug(s) > narcotic drink or drug used for
dwale1393
tonga1852
locus1859
knock-out drops1895
Mickey Finn1918
Michael1932
Mickey1938
incapacitant1961
1859 J. C. Hotten Dict. Slang 60 The Locuss generally consists of snuff and beer.
1861 H. Mayhew London Labour (new ed.) III. 387/2 Some of the convicts would have given me some lush with a locust in it (laudanum hocussing).
1959 J. E. Schmidt Narcotics Lingo & Lore 103 Locus—1. An opiate. 2. Any narcotizing preparation. Locust—same as Locus.
1986 R. A. Spears Slang & Jargon Drugs & Drink 320 Locust (also locus), knockout drops; laudanum. From the name for a policeman's club made out of locust wood.
This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).

locusv.

Forms: 1800s locus, 1800s locuss.
Origin: Of uncertain origin.
Etymology: Origin uncertain. Perhaps partly < locus n.2, and partly an error for hocus v. N.E.D. (1903) gives the pronunciation as (lōu·kɒ̆s) /ˈləʊkəs/.
slang. Obsolete.
transitive. To stupefy or render unconscious with a drugged drink or other narcotic, esp. for a criminal purpose. Also in to locus away: to drug so as to abduct and force (a person) to join a ship's crew. Cf. hocus v. 2.
ΘΚΠ
the world > food and drink > drink > thirst > excess in drinking > [verb (transitive)] > make drunk > make very or insensibly drunk
to drink (also put, see, etc.) someone under the tablea1636
locus1829
to sew up1829
to drink under the table1897
mickey-finn1957
1829 Bell's Life in London 12 Apr. He solemnly avers..that he lost the fight from having been locussed (hocussed, we presume) by two of his best friends.
1831 Examiner 764/2 May threw a glass of the gin into Bishop's tea, when the latter said, ‘are you going to locus or Burke me?’ Mr. Horner explained that ‘locus’ was a cant word to describe the act of putting a man in a state of stupidity. [Cf. quot. 1831 at hocus v. 2.]
1859 J. C. Hotten Dict. Slang 60 Locuss, to drug a person and then rob them.
1898 J. A. Barry Steve Brown's Bunyip 30 I've been shanghaied an' locussed away to sea, an' I wants to git back home again.

Derivatives

locusing n.
ΚΠ
1868 Temple Bar 24 539Locusing’ is putting a chap to sleep with chloroform and ‘bellowsing’ is putting his light out.
This entry has been updated (OED Third Edition, December 2015; most recently modified version published online March 2022).
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