单词 | scattering |
释义 | scatteringn. 1. a. The action of scatter v., in various senses; also, an instance of this. ΘΚΠ the world > movement > motion in a certain direction > going away > [noun] > parting from one another partingc1330 scattering1382 sculda1400 twina1400 the world > space > relative position > arrangement or fact of being arranged > state of being scattered or dispersed > [noun] > action of scattering or becoming scattered scattering1382 dispersionc1450 upsparplinga1560 dispersing1604 distraction1618 scatteration1776 dispersal1821 deconcentration1889 shattering1960 the world > relative properties > wholeness > mutual relation of parts to whole > separation > [noun] > separating from main body scattering1382 segregation1617 singling1625 dismemberment1838 off-break1866 split-off1935 1382 Bible (Wycliffite, L.V.) James i. 1 James..to the twelue kynredis, that ben in scateringe abrood, helthe. a1400 (a1325) Cursor Mundi (Trin. Cambr.) l. 15541 Þis nyȝt shal ben a scateryng [Vesp. sculd, Gött. skaile, Fairf. parting]: bitwene ȝou and me. 1545 G. Joye Expos. Daniel (vii.) f. 100 Of this diuision and skateringe therof [sc. the Roman empire], Paul..gaue..a watche worde and warning. 1588 Sir J. Hawkins in State Papers Defeat Spanish Armada (1894) I. 359 By the occasion of the scattering [MS. schateringe] of one of the great ships from the fleet. 1662 E. Stillingfleet Origines Sacræ iii. i. §1 By reason of the promiscuous scatterings of good and evil in this life. b. spec. in Physics: cf. scatter v. 5e. ΘΚΠ the world > matter > physics > electromagnetic radiation > heat > [noun] > emission or diffusion irradiation1794 radiance1800 radiation1802 actinism1847 scattering1866 emissivity1880 the world > matter > physics > electromagnetic radiation > light > refraction > [noun] > scattering scattering1866 Rayleigh scattering1925 Thomson scattering1935 scatter1942 the world > matter > physics > atomic physics > particle physics > action of dispersing particles > [noun] scattering1911 the world > matter > physics > atomic nucleus > radioactivity > alpha radiation > [noun] > scattering scattering1911 the world > matter > physics > atomic nucleus > radioactivity > beta radiation > [noun] > scattering scattering1911 the world > matter > physics > science of sound > sound-waves > [noun] > scattering scattering1950 1866 B. Stewart Heat §189. 172 As in the case of light.., so also with regard to heat there is a diffuse reflection or scattering about of the rays. 1911 Mem. & Proc. Manch. Literary & Philos. Soc. 55 p. xviii (heading) The scattering of the α and β rays and the structure of the atom. 1942 J. D. Stranathan ‘Particles’ of Mod. Physics xi. 405 On the theory of multiple scattering an entirely negligible number of particles should be scattered at large angles. 1950 Nature 30 Dec. 1103/2 It is..probable that turbulent scattering..plays an important part in determining the signals received from high-power metre~wave transmitters at distances greater than about 100 miles. 1955 T. F. Hueter & R. H. Bolt Sonics iii. 85 Scattering at the grain boundaries is one important cause for the absorption of ultrasonic waves in metals. 1974 G. Reece tr. F. Hund Hist. Quantum Theory iv. 56 In 1903 J. J. Thomson worked out from the intensity of scattering of X-rays that the number of electrons must be roughly equal to the atomic weight. 1975 D. G. Fink Electronics Engineers' Handbk. xviii. 91 At frequencies in the 30- to 100-MHz region, regular but weak propagation by ionospheric scattering is obtained. 2. a. concrete. That which is scattered. ΘΚΠ the world > space > relative position > arrangement or fact of being arranged > state of being scattered or dispersed > [noun] > that which is scattered scatteringa1340 diffusion1654 a1340 R. Rolle Psalter cxlvi. 2 Dispersiones israelis congregabit... Þe scatiryngis of israel he sall gadire. 1546 Supplic. Poor Commons sig. b.i They..must leaue the latwarde fruite with the scaterynge of theyr corne for the poore to gather. a1662 P. Heylyn Cyprianus Angl. (1671) i. 156 Which alone will be able to bind up the scatterings of divided affections into strength. 1694 R. South 12 Serm. II. 517 The former Instances of Temporal Prosperity, which are but (as it were) the promiscuous Scatterings of his Common Providence. 1747 W. Gould Acct. Eng. Ants 36 A white Substance, not altogether unlike the Scatterings of fine Sugar. 1908 Betw. Trent & Axeholme 107 On the grass..lies a thick scattering of petals. b. A sparse number or amount; a small proportion (of persons) interspersed. ΘΚΠ the world > relative properties > number > plurality > fewness > [noun] > a small number of some fewOE puckleOE a litec1290 couple1365 a…or twoa1400 handfulc1443 a wheen (of)1487 and odd1548 sprinkling1561 pair1611 scattering1628 sprinkle1754 the world > space > relative position > arrangement or fact of being arranged > state of being scattered or dispersed > [noun] > state of being scattered at wide intervals > a sparse scattering sprinkling1561 scattering1628 1628 J. Earle Micro-cosmogr. xxxiii. sig. F11v He has his sentences for Company, some scatterings of Seneca and Tacitus. 1690 C. Ness Compl. Hist. & Myst. Old & New Test. I. 180 The gentile world wherein God had some scatterings of holy ones. 1896 Strand Mag. 12 348/1 There is a scattering of Europeans among the divers. Compounds scattering angle n. Physics the angle through which a scattered particle or beam is deflected. ΘΚΠ the world > matter > physics > atomic physics > particle physics > action of dispersing particles > [noun] > angle of scattering scattering angle1913 1913 London, Edinb., & Dublin Philos. Mag. 6th Ser. 26 711 It is a different matter..when the scattering angle is only about 1/ 10 of a degree, as in the present experiment. 1950 Nature 30 Dec. 1102/2 A great simplification of the results is effected by restricting the discussion to small angles (beam-widths and scattering angles). 1970 I. E. McCarthy Nuclear Reactions i. i. 9 We see that for a given scattering angle particles of higher energy come closer to the nucleus. This entry has not yet been fully updated (first published 1910; most recently modified version published online December 2019). scatteringadj. 1. In intransitive senses. a. That disperses in all directions; hence vagrant, roving, stray. †Of action: Erratic. ΘΚΠ the world > movement > motion in a certain direction > change of direction of movement > [adjective] > moving without fixed course vaganta1382 scatteringc1450 stragglinga1560 wandering1590 undirecteda1599 wayless1605 planetary1607 rambling?1609 exorbitant1613 exorbitating1632 random1655 unconducteda1677 devious1735 truant1791 wild1810 erratic1841 directionless1860 scrolloping1923 c1450 Brut i. 191 Thus staterand [? read scaterand] Scottes, holde y for sottes, of wrenches vnwar. [Cf. Skiterende Scottes v.r. c 1330 in Langtoft Chron. (Rolls) II. 252.] 1555 R. Eden tr. Peter Martyr of Angleria Decades of Newe Worlde ii. v. f. 70 The naked seely sowles..were..slayne for the most parte lyke scaterynge sheepe. a1616 W. Shakespeare Othello (1622) iii. iii. 156 Nor build your selfe a trouble, Out of my scattering, and vnsure obseruance. 1691 J. Ray Wisdom of God 31 The scattering Spirits remaining in the Heart, may for a time being agitated by heat, cause these faint Pulsations. 1718 N. Rowe tr. Lucan Pharsalia iv. 190 The scatt'ring clouds disclos'd the piercing light. 1720 D. Defoe Mem. Cavalier 128 They sent about 20 scattering Troopers. b. Lying scattered or spread out over a comparatively wide area; occurring sparsely or irregularly; sporadic; of a composite thing, having its parts so spread out; straggling. Now chiefly U.S.Of votes (U.S.): Miscellaneous, cast for candidates whose poll is too small to call for separate enumeration. ΘΚΠ the world > space > relative position > arrangement or fact of being arranged > absence of arrangement > [adjective] > irregularly arranged straggling1604 extravagant1608 scattering1610 squanderinga1616 scambling1702 scragglinga1722 wandering1785 straggly1862 straggled1884 the world > space > relative position > arrangement or fact of being arranged > state of being scattered or dispersed > [adjective] > scattered at wide intervals rare?1440 thin-sown1590 scattered1595 scattering1610 disparpled1652 intervaled1659 scattery1816 sparse1861 the world > time > frequency > infrequency > [adjective] > intermittent or irregular chopping1483 wavering1488 interpolate1547 suspensive1575 off and on1583 remitting1583 intermissive1586 fluttering1590 aguisha1602 intermittent1603 irregular1608 broken1629 intermitting1643 serratile1707 serrine1707 scattering1709 serratic1753 now-and-then1762 remittent1791 fitful1810 non-periodic1836 spasmodic1837 startful1837 interlusory1853 heterochronic1854 heterochronous1854 between-whiles1859 snatchy1861 sporadic1861 spasmodical1864 catchy1869 pauseful1877 aperiodic1879 scratchy1881 nervy1884 spurty1894 off-again on-again1923 on-again off-again1946 on-off1949 1610 P. Holland tr. W. Camden Brit. i. 439 A small village it is in these daies, inhabited in scattering wise. 1642 T. Fuller Holy State v. xiv. 414 Then first he sells..some stragling mannour..as counting the gathering of such scattering rents rather burdensome then profitable. 1677 W. Hubbard Present State New-Eng. (1865) II. 256 Many of these scattering Plantations in our Borders..were contented to live without..Yoake of Government. 1697 J. Dryden tr. Virgil Georgics iv, in tr. Virgil Wks. 128 Yet lab'ring well his little Spot of Ground, Some scatt'ring Potherbs here and there he found. View more context for this quotation 1709 J. Strype Ann. Reformation xxxii. 325 Now to gather up a few more scattering passages that happened this year. c1710 C. Fiennes Diary (1888) 164 They being scattering houses, here one, there another. 1828 N. Webster Amer. Dict. Eng. Lang. Scattering,..2. Not united; divided among many; as, scattering votes. 1856 F. L. Olmsted Journey Slave States 642 Washington is a mean, scattering village. 1875 W. D. Whitney Life & Growth Lang. xiii. 266 When the Etruscans were Latinized, but for the scattering words which they had written down, their speech passed out of all reach of knowledge. 1879 A. Johnston Hist. Amer. Polit. (1884) 221 The Electoral votes..were found to be, for President, Grant, 286, T. A. Hendricks, of Indiana, 42, and 21 scattering. 1888 Amer. Jrnl. Psychol. 1 408 Letters appearing in the record less frequently than five per cent of these numbers have been regarded as scattering errors. c. That scatters or falls here and there. ΚΠ 1761 J. Wesley Jrnl. 20 June (1827) III. 61 We had only some scattering drops [of rain]. 1794 Ld. Nelson 21 Jan. in Dispatches & Lett. (1845) I. 364 They only got a few scattering shot at us. 2. a. Physics. That causes scattering (of light, radiation, particles or the like). ΘΚΠ the world > matter > physics > electromagnetic radiation > light > refraction > [adjective] > scattering scattering1808 Tyndall1910 the world > matter > physics > electromagnetic radiation > light > refraction > [adjective] > causing scattering scattering1808 the world > matter > physics > atomic physics > particle physics > action of dispersing particles > [adjective] scattering1911 the world > matter > physics > atomic nucleus > radioactivity > alpha radiation > [adjective] > causing scattering scattering1938 1808 W. Herschel in Philos. Trans. (Royal Soc.) 99 280 A scattering glass applied to the incident ray, had no other effect than to diminish the brightness of the [prismatic] bow. 1911 London, Edinb. & Dublin Philos. Mag. 6th Ser. 21 675 It is essential that the thickness of the scattering material should be so small that the chance of a second encounter involving another large deflexion is very small. 1938 R. W. Lawson tr. G. von Hevesy & F. A. Paneth Man. Radioactivity (ed. 2) ix. 95 A strong pencil of α-particles of definite velocity is allowed to strike a thin sheet of the scattering substance. 1958 Times 30 Apr. 6/6 The forward scatter technique..in this case uses the troposphere as the scattering medium. 1970 D. W. Tenquist et al. Univ. Optics II. ii. 84 If the incident light photon of energy hv impinges upon a molecule of the scattering medium and the energy state of this molecule changes from E1 to E2, the energy of the Raman scattered photon is given by hv − (E2 − E1). b. scattering layer n. (Oceanogr.), any of a number of layers in the sea which give rise to strong acoustic echoes owing to the presence of a high concentration of living organisms. ΘΚΠ the world > the earth > water > sea or ocean > region of sea or ocean > [noun] > specific layers laminarian zone1851 stratosphere1932 troposphere1932 scattering layer1942 sound channel1946 psychrosphere1956 thermosphere1956 Ekman layer1957 thermo-halocline1964 nepheloid layer1965 1942 Reverberation Stud. at 24 Kc (Univ. Calif. Div. War Res. Rep. u7) 48 (heading) Deep scattering layers. 1942 Reverberation Stud. at 24 Kc (Univ. Calif. Div. War Res. Rep. u7) 49 Observations indicate that deep scattering layers, in a given area, may appear and disappear and yet persist for periods as long as a month or perhaps even longer. 1948 National Geographic Mag. Sept. 277/2 So incredibly numerous are such sea creatures that this layer of ocean life actually returns an echo of the sound sent down by the Fathometer. The echo from this so-called ‘scattering layer’ is sometimes so strong that it causes navigators to think they are sailing over a shoal. 1972 J. Williams Oceanogr. 53 At night this deep scattering layer..is centered near the sea surface... In the morning it moves down into the depths again. 1977 Clay & Medwin Acoust. Oceanogr. vii. 237 A great deal of data, particularly the frequency dependence of scattering layers, are obtained by using explosive sources. DerivativesΘΚΠ the world > space > relative position > arrangement or fact of being arranged > state of being scattered or dispersed > [noun] > state of being scattered at wide intervals thinnessc1440 rarity1598 scatteredness1667 scatteringness1747 1747 in Colonial Rec. Pennsylvania (1851) V. 102 The scatteringness of the Settlements..must ever render them liable to Depredations. This entry has not yet been fully updated (first published 1910; most recently modified version published online March 2022). < n.a1340adj.c1450 |
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