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单词 os
释义

osn.1

Brit. /ɒs/, U.S. /ɑs/
Inflections: Plural ossa.
Forms: Middle English osse, Middle English– os.
Origin: A borrowing from Latin. Etymons: Latin ossi-, os.
Etymology: < classical Latin ossi-, os bone < the same Indo-European base as ancient Greek ὀστέον (see osteo- comb. form). Compare Old French, Middle French, French os (c1100).
Chiefly Anatomy and Zoology.
A bone. Chiefly in names of particular bones with (usually postmodifying) classical, post-classical, or scientific Latin nouns and adjectives.
ΘΚΠ
the world > life > the body > structural parts > bone or bones > [noun]
boneOE
osa1400
a1400 tr. Lanfranc Sci. Cirurgie (Ashm.) (1894) 176 Þat boon þat goiþ ouerþwert vndir þe ars aboue þe ȝerde, & is clepid os pectinis.
1578 J. Banister Hist. Man i. f. 8 And for that these bones do represent scales, to the sides of other bones (to make vp the inclosure) adherent, they haue no other nomination than, Ossa squammosa.
1611 R. Cotgrave Dict. French & Eng. Tongues at Os Os de la hanche, the third part of Os Ilium.
1688 R. Holme Acad. Armory ii. xvii. 418/2 A bone, termed Os, or Ossean part.
1749 H. Fielding Tom Jones III. vii. xiii. 109 The Os or Bone very plainly appeared through the Aperture. View more context for this quotation
1807 R. Morris & J. Kendrick Edinb. Med. & Physical Dict. II Os, a bone.
1877 Spirit of Times 24 Nov. 447/1 It extends from the horny to the sensitive frog, involving the surrounding parts, and not frequently, but occasionally, penetrating to the os navicularis.
1882 S. S. Cox Orient Sunbeams xxi. 276 The Arab generally sits on the remote point of the os coccygis of the animal [sc. a donkey], and without stirrups.
1948 Man 48 132/2 An os frontale, two ossa parietalia, mandibula, [etc.].
1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) vii. 199 We may mention, as examples, the os palpebrae of crocodilians (and some dinosaurs), a plate embedded in the eyelid; the os cordis formed in the heart of deer and bovids.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

Osn.2

Brit. /ˌəʊˈɛs/, U.S. /ˌoʊˈɛs/
Origin: Formed within English, by clipping or shortening. Etymon: osmium n.
Etymology: Symbolic abbreviation for osmium n.
Chemistry.
The element osmium.
ΚΠ
1814 tr. J. J. Berzelius in Ann. Philos. 3 52 Os = osmium.
1896 Amer. Naturalist 30 936 The suggestion is made that Os and Ir occur replacing Pr in sperrylite.
1951 Proc. Royal Soc. A. 208 440 The fall in melting point on passing from Mo → Ru, and from W → Re → Os suggests that in the metallic state a decrease in valency occurs after Group VI.
1992 Inorg. Chem. 31 36/1 Locations of the Os atom and many of the smaller atoms were determined by direct methods.
This is a new entry (OED Third Edition, September 2004; most recently modified version published online March 2022).

osn.3

Brit. /əʊs/, U.S. /oʊs/
Inflections: Plural ora.
Origin: A borrowing from Latin. Etymons: Latin ōr-, ōs.
Etymology: < classical Latin ōr-, ōs mouth (see oral adj.).
Anatomy.
More fully external os: the opening of the cervix into the vagina; the os uteri or os externum. Also (in full internal os): the constriction of the cervical canal at its junction with the body of the uterus; the os internum.
ΘΚΠ
the world > life > biology > physical aspects or shapes > indentation or cavity > [noun] > opening or hole
holea1400
vent1567
perforation1578
mouth1634
foramen1672
ostium1683
stoma1684
buttonhole1753
inlet1828
aditus1839
os1858
hiatus1886
1858 A. Farre in Todd's Cycl. Anat. & Physiol. V. 639/1 The epithelium just within the os..is not ciliated.
1872 T. G. Thomas Pract. Treat. Dis. Women (ed. 3) 35 The changes which the os undergoes during pregnancy.
1949 H. W. C. Vines Green's Man. Pathol. (ed. 17) xxxvi. 1017 It [sc. cervical erosion] is a reddened area round the external os, which bleeds rather readily and may be mistaken for cancer.
1971 A. Phillips & J. Rakusen Our Bodies Ourselves (1978) ii. 22 The dimple you felt is the os, or opening into the uterus. It is about the diameter of a very thin straw.
1991 Lancet 9 Mar. 621/1 Central placenta praevia can be diagnosed in early pregnancy, especially when the relation of the placental tissue to the os and the endocervical canal is noted.
2001 Ultrasound in Obstetrics & Gynecol. 17 217 The distance between the internal and external os was measured both as a straight line and also as a curved line along the endocervical canal.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online June 2022).

> as lemmas

O.S.
O.S. n. Obsolete old style (cf. style n. 27a).
ΘΠ
the world > time > reckoning of time > calendar > [noun] > old style or new style
English Style1590
Julian account1592
new style1615
old style1617
N.S.1698
O.S.1710
1710 London Gaz. No. 4785/2 The 14th of the last Month, O.S.
1887 A. M. Clerke Pop. Hist. Astron. (ed. 2) i. iii. 85 A Swedish professor named Vassenius, who observed a total eclipse at Gottenburg, May 2 (O.S.), 1733.
1910 Encycl. Brit. I. 559/1 Before the momentous issue could be decided, however, Alexander died at Taganrog on the 1st December (November 18, O.S.) 1825.
extracted from On.1
OS
OS n. Computing operating system.
ΚΠ
1968 IEEE 2nd. Conf. on Applic. Simulation 151/2 The necessary Job Control Language..statements are invoked from the OS procedure library.
1991 Macworld Sept. 25/1 QuickDraw is the part of the Macintosh OS that creates the screen display.
extracted from On.1
OS
OS n. ordinary seaman.
ΘΚΠ
society > armed hostility > hostilities at sea > seafaring warrior or naval man > [noun] > ordinary seaman
common sailor1698
ordinary seaman1702
OS1802
ranker1890
O.D.1916
hostile ord1919
erk1925
white hat1952
rate1977
1802 in Naval Documents U.S. Wars Barbary Powers (U.S. Office Naval Rec.) (1940) II. 133 O.S. here are very scarce.
1908 Army & Navy Gaz. 7 Nov. 1066/1 The two marines, a stoker, and an O.S. caged like rats in a trap.
1962 W. Granville Dict. Sailors' Slang 83/1 O.D. Naval colloquialism for ordinary seaman. OS or Ord is the official abbreviation.
extracted from On.1
OS
OS n. Ordnance Survey.
ΘΚΠ
the world > the earth > earth sciences > geography > map-making > surveying > [adjective] > specific types of survey or surveying
stradametrical1852
cadastral1858
triangulating1861
topographometric1909
OS1952
1952 G. H. Dury Map Interpr. xi. 98 On the O.S. topographical maps, evidence of agriculture is mostly of a negative kind.
1971 A. Hunter Gently at Gallop ii. 20 At the summit of the rise..stood an O.S. triangulation pedestal.
2000 Canoeist Apr. 14/2 We checked out every blue squiggle on our OS maps to see if it was a goer.
extracted from On.1
O.S.
O.S. adv. (also O/S) Television and Film out of shot.
ΚΠ
1960 M. Voysey Amorous Goldfish 270 Mrs Clarke: (O.S.) Captain Coppard to see you.
1998 L. David & J. Seinfeld Seinfeld Chron. in L. David et al. Seinfeld Scripts 14 Kessler. (o.s.) You up?
extracted from On.1
O.S.
O.S. adj. outsize.
Π
1907 Yesterday's Shopping (1969) 768/1 O.S. Night Dresses... O.S. Chemises.
1927 Daily Express 3 Nov. 7 Forty inches at the hips would be O.S. A woman with 60 inches at the hips would be O.O.S., or extra outsize.
1973 Country Gentlemen's Mag. Mar. 184/1 For sale owing to loss of weight, full length O.S. evening dress, deep mauve velvet..will accept £15.
extracted from On.1
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n.1a1400n.21814n.31858
as lemmas
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