ostiumn.

Brit.

/ˈɒstɪəm/, U.S.

/ˈɑstiəm/

Inflections: Plural ostia, ostiums.

Origin: A borrowing from Latin. Etymon: Latin ōstium.

Etymology: < classical Latin ōstium door, entrance, opening, mouth of a river < ōs mouth (see oral adj.), probably < the same Indo-European base as Sanskrit oṣṭha lip, Avestan aošta- lip, Old Church Slavonic ustĭna lip, usta mouth, Lithuanian uostas mouth of a river.

†1. An opening or mouth, esp. the mouth of a river. Obsolete.

ΘΚΠ

the world > the earth > water > rivers and streams > system > [noun] > mouth or outfall

mouthlOE

issue1423

firthc1425

estuary15..

fall1511

port1555

inset1559

water mouth1574

open1582

emboguing1603

ostium1611

inver1615

outfall1629

ostiary1646

influx1652

disclosure1660

discharge1688

waterfoot1730

outflux1739

embouchure1792

sortie1809

beal1819

debouchure1832

salting-place1842

embouchement1844

debouchment1859

ria1887

1611 T. Coryate Crudities sig. O2 Nature..hath framed it [sc. Venice] crooked in the forme of a bow, and by the Art of man there are fiue Ostia, that is mouthes, or gappes made therein.

1665 T. Herbert Some Years Trav. (new ed.) 89 The great and noble River Ganges in two Ostiums falls under 23 deg.

1695 J. Woodward Ess. Nat. Hist. Earth 43 Mud being reposed..near the Ostia of those Rivers.

1778 E. M. da Costa Hist. Nat. Testaceorum Brit. 152 The ostium of the river Aln in Northumberland.

a. Anatomy and Zoology. An opening or orifice; esp. the entrance to a hollow organ. Frequently in compounds with postmodifying classical, post-classical, and scientific Latin nouns and adjectives.

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

the world > animals > animal body > general parts > internal organs and systems > [noun] > openings of vessels

ostium1683

1683 Philos. Trans. (Royal Soc.) 13 132 He does not describe them or take any notice of the Ostia, or Foramina in them.

1698 Philos. Trans. (Royal Soc.) 20 164/1 The Ostium or Mouth of the Right Vagina.

1805 Philos. Trans. (Royal Soc.) 95 229 A view of the left side of the heart, the common ventricle being opened by a simple incision, showing the valves of the ostium.

1828 J. Quain Elements Anat. viii. 537 The fimbriated border presents a fissure or opening, (ostium abdominale) into which the impregnated ovum is received at the moment of its liberation from the ovarium, and thence conveyed along the tube, which opens into the uterus by another aperture, (ostium uterinum).

1874 J. Hinton tr. A. F. Von Tröltsch Surg. Dis. Ear v. 36 The tympanic opening of the [Eustachian] tube (ostium tympanicum) lies directly opposite the irregularly shaped entrances to the mastoid cells.

1898 T. C. Allbutt et al. Syst. Med. V. 703 Close to the ostium [of the cardiac pulmonary valves].

1909 F. R. Bailey & A. M. Miller Text-bk. Embryol. x. 232 The valves between the atrium and ventricle..develop for the most part from the walls of the triangular atrio-ventricular opening (ostium atrio-ventriculare).

1951 C. K. Weichert Anat. Chordates viii. 321 The ovum then passes through the ostium tubae into the Fallopian tube.

1962 W. H. Hollinshead Textbk. Anat. xix. 581/1 The atrium opens into the right ventricle by way of the right atrioventricular ostium.

1979 Acta Pathol. et Microbiol. Scandinavica B. 87 65 As found at laparotomy, the infected [fallopian] tubes were swollen and reddened, and there was watery exudate in the abdominal ostia.

1984 J. R. Tighe & D. R. Davies Pathol. (ed. 4) xiii. 103 Atheromatous plaques tend to be localised at..the ostia of small branches where turbulence is greatest.

2003 Radiographics 23 S19 Atrial fibrillation, the most frequently occurring supraventricular tachyarrhythmia, may be initiated by ectopic beats that originate in the ostia of the pulmonary veins.

b. Zoology. Any of the openings between the body cavity and the heart of an arthropod.

ΚΠ

1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 434 The margins of the ostia may be simple or may be produced inwards into folds which play the part of valves.

1883 Science 21 Dec. 792/2 It is true that the heart is longer than it is in Mysis; but there are only three pairs of ostia.

1925 A. D. Imms Gen. Textbk. Entomol. 123 The blood enters the heart through lateral inlets or ostia, a pair of which is situated at each constriction between adjacent chambers.

1969 R. F. Chapman Insects xxxii. 661 The anterior and posterior lips of each ostium are reflexed into the heart so that they form a valve permitting the flow of blood into the heart.., but preventing its outward passage.

2001 Jrnl. Crustacean Biol. 21 28 The heart [of Hutchinsoniella macracantha]..has three paired ostia dorsolaterally.

c. Zoology. An opening through which water enters a sponge.

ΚΠ

1900 E. A. Minchin in E. R. Lankester Treat. Zool. ii. iii. 33 The openings of the incurrent canals may be termed the ostia, while the chamber pores receive the special name of prosopyles.

1940 G. S. Carter Gen. Zool. Invertebr. xix. 382 It [sc. water] enters the body by very numerous small openings (ostia) scattered over the surface.

1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) vi. 72 A microscopic examination of the surface of the body reveals minute openings or pores called ostia and it is through these ostia that the water enters the body.

1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) iii. 25/2 The ostia and oscula are connected within the sponge by a system of canals and chambers.

2000 Diversity & Distributions 6 300/1 The inhalant ostia are on the underside of the funnel.

This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).

单词	ostium
释义	ostiumn. Brit. /ˈɒstɪəm/, U.S. /ˈɑstiəm/ Inflections: Plural ostia, ostiums. Origin: A borrowing from Latin. Etymon: Latin ōstium. Etymology: < classical Latin ōstium door, entrance, opening, mouth of a river < ōs mouth (see oral adj.), probably < the same Indo-European base as Sanskrit oṣṭha lip, Avestan aošta- lip, Old Church Slavonic ustĭna lip, usta mouth, Lithuanian uostas mouth of a river. †1. An opening or mouth, esp. the mouth of a river. Obsolete. ΘΚΠ the world > the earth > water > rivers and streams > system > [noun] > mouth or outfall mouthlOE issue1423 firthc1425 estuary15.. fall1511 port1555 inset1559 water mouth1574 open1582 emboguing1603 ostium1611 inver1615 outfall1629 ostiary1646 influx1652 disclosure1660 discharge1688 waterfoot1730 outflux1739 embouchure1792 sortie1809 beal1819 debouchure1832 salting-place1842 embouchement1844 debouchment1859 ria1887 1611 T. Coryate Crudities sig. O2 Nature..hath framed it [sc. Venice] crooked in the forme of a bow, and by the Art of man there are fiue Ostia, that is mouthes, or gappes made therein. 1665 T. Herbert Some Years Trav. (new ed.) 89 The great and noble River Ganges in two Ostiums falls under 23 deg. 1695 J. Woodward Ess. Nat. Hist. Earth 43 Mud being reposed..near the Ostia of those Rivers. 1778 E. M. da Costa Hist. Nat. Testaceorum Brit. 152 The ostium of the river Aln in Northumberland. 2. a. Anatomy and Zoology. An opening or orifice; esp. the entrance to a hollow organ. Frequently in compounds with postmodifying classical, post-classical, and scientific Latin nouns and adjectives. 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 the world > animals > animal body > general parts > internal organs and systems > [noun] > openings of vessels ostium1683 1683 Philos. Trans. (Royal Soc.) 13 132 He does not describe them or take any notice of the Ostia, or Foramina in them. 1698 Philos. Trans. (Royal Soc.) 20 164/1 The Ostium or Mouth of the Right Vagina. 1805 Philos. Trans. (Royal Soc.) 95 229 A view of the left side of the heart, the common ventricle being opened by a simple incision, showing the valves of the ostium. 1828 J. Quain Elements Anat. viii. 537 The fimbriated border presents a fissure or opening, (ostium abdominale) into which the impregnated ovum is received at the moment of its liberation from the ovarium, and thence conveyed along the tube, which opens into the uterus by another aperture, (ostium uterinum). 1874 J. Hinton tr. A. F. Von Tröltsch Surg. Dis. Ear v. 36 The tympanic opening of the [Eustachian] tube (ostium tympanicum) lies directly opposite the irregularly shaped entrances to the mastoid cells. 1898 T. C. Allbutt et al. Syst. Med. V. 703 Close to the ostium [of the cardiac pulmonary valves]. 1909 F. R. Bailey & A. M. Miller Text-bk. Embryol. x. 232 The valves between the atrium and ventricle..develop for the most part from the walls of the triangular atrio-ventricular opening (ostium atrio-ventriculare). 1951 C. K. Weichert Anat. Chordates viii. 321 The ovum then passes through the ostium tubae into the Fallopian tube. 1962 W. H. Hollinshead Textbk. Anat. xix. 581/1 The atrium opens into the right ventricle by way of the right atrioventricular ostium. 1979 Acta Pathol. et Microbiol. Scandinavica B. 87 65 As found at laparotomy, the infected [fallopian] tubes were swollen and reddened, and there was watery exudate in the abdominal ostia. 1984 J. R. Tighe & D. R. Davies Pathol. (ed. 4) xiii. 103 Atheromatous plaques tend to be localised at..the ostia of small branches where turbulence is greatest. 2003 Radiographics 23 S19 Atrial fibrillation, the most frequently occurring supraventricular tachyarrhythmia, may be initiated by ectopic beats that originate in the ostia of the pulmonary veins. b. Zoology. Any of the openings between the body cavity and the heart of an arthropod. ΚΠ 1877 T. H. Huxley Man. Anat. Invertebrated Animals vii. 434 The margins of the ostia may be simple or may be produced inwards into folds which play the part of valves. 1883 Science 21 Dec. 792/2 It is true that the heart is longer than it is in Mysis; but there are only three pairs of ostia. 1925 A. D. Imms Gen. Textbk. Entomol. 123 The blood enters the heart through lateral inlets or ostia, a pair of which is situated at each constriction between adjacent chambers. 1969 R. F. Chapman Insects xxxii. 661 The anterior and posterior lips of each ostium are reflexed into the heart so that they form a valve permitting the flow of blood into the heart.., but preventing its outward passage. 2001 Jrnl. Crustacean Biol. 21 28 The heart [of Hutchinsoniella macracantha]..has three paired ostia dorsolaterally. c. Zoology. An opening through which water enters a sponge. ΚΠ 1900 E. A. Minchin in E. R. Lankester Treat. Zool. ii. iii. 33 The openings of the incurrent canals may be termed the ostia, while the chamber pores receive the special name of prosopyles. 1940 G. S. Carter Gen. Zool. Invertebr. xix. 382 It [sc. water] enters the body by very numerous small openings (ostia) scattered over the surface. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) vi. 72 A microscopic examination of the surface of the body reveals minute openings or pores called ostia and it is through these ostia that the water enters the body. 1987 M. S. Laverack & J. Dando Lect. Notes Invertebr. Zool. (ed. 3) iii. 25/2 The ostia and oscula are connected within the sponge by a system of canals and chambers. 2000 Diversity & Distributions 6 300/1 The inhalant ostia are on the underside of the funnel. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1611
随便看	out of his way out of hock out of humor out of humour out of it out of joint out of judgement out of key out of kilter out of kind out of knowledge out of lash out of life out of liking out of lith out of livery out of lose out of love out of love with out of luck out of measure out of memory out of memory of out of mesh out of mind