os orbicularen.

Brit.

/ˌɒs ɔːbɪkjᵿˈlɑːri/, U.S.

/ˈˌɑs ɔrˌbɪkjəˈlɑri/

Origin: A borrowing from Latin. Etymon: Latin os orbiculare.

Etymology: < post-classical Latin os orbiculare (1666 or earlier) < classical Latin os os n.¹ + post-classical Latin orbicularis orbicular adj.

Anatomy and Zoology. Now rare or historical.

The orbicular bone.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > bones of ear > others

os orbiculare1698

orbicular bone1706

tympanic1851

opisthotic1865

prootic1866

tympanal1875

otolith1890

tegmen tympani1890

1698 W. Cowper Anat. Humane Bodies sig. C2^v/1 The Stapes..is articulated with the Incus, by the mediation of the Os orbiculare.

1720 W. Gibson Farriers New Guide 94 The little bones that are contained in the cavities of this process, viz. the Incus, Malleus, Stapes and Os orbiculare.

1772 W. Northcote Anat. Human Body 91 The os orbiculare, the orbicular or lenticular bone, is the smallest bone in the body.

1812 Philos. Trans. (Royal Soc.) 102 87 The appearance of an os orbiculare is wanting.

1832 Abstr. Papers Royal Soc. 1800–14 1 416 The long handle of the malleus has no connexion with any other part; but the forms of this bone, of the incus, and stapes are much the same as in the human ear; there being no considerable difference excepting in the want of the os orbiculare.

1913 Cunningham's Text-bk. Anat. (ed. 4) 840 Until the sixth month of fœtal life this process exists as a separate ossicle, termed the os orbiculare.

1950 Philos. Trans. (Royal Soc.) B. 235 11 The crus longum..passes backwards and mesialwards towards the head of the stapes and there is here a nodule of cartilage that may represent an os orbiculare.

1978 Jrnl. Laryngol. & Otol. 92 453 The fourth auditory ossicle (the Os Orbiculare or Lenticulare, or the Osselet of Sylvius) was described and depicted in all books on anatomy or otology up to the turn of the century. Its presence is no longer observed nowadays, despite the thousands of micro-surgical operations performed on the middle ear and its ossicular chain.

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

单词	os orbiculare
释义	os orbicularen. Brit. /ˌɒs ɔːbɪkjᵿˈlɑːri/, U.S. /ˈˌɑs ɔrˌbɪkjəˈlɑri/ Origin: A borrowing from Latin. Etymon: Latin os orbiculare. Etymology: < post-classical Latin os orbiculare (1666 or earlier) < classical Latin os os n.¹ + post-classical Latin orbicularis orbicular adj. Anatomy and Zoology. Now rare or historical. The orbicular bone. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > bones of ear > others os orbiculare1698 orbicular bone1706 tympanic1851 opisthotic1865 prootic1866 tympanal1875 otolith1890 tegmen tympani1890 1698 W. Cowper Anat. Humane Bodies sig. C2^v/1 The Stapes..is articulated with the Incus, by the mediation of the Os orbiculare. 1720 W. Gibson Farriers New Guide 94 The little bones that are contained in the cavities of this process, viz. the Incus, Malleus, Stapes and Os orbiculare. 1772 W. Northcote Anat. Human Body 91 The os orbiculare, the orbicular or lenticular bone, is the smallest bone in the body. 1812 Philos. Trans. (Royal Soc.) 102 87 The appearance of an os orbiculare is wanting. 1832 Abstr. Papers Royal Soc. 1800–14 1 416 The long handle of the malleus has no connexion with any other part; but the forms of this bone, of the incus, and stapes are much the same as in the human ear; there being no considerable difference excepting in the want of the os orbiculare. 1913 Cunningham's Text-bk. Anat. (ed. 4) 840 Until the sixth month of fœtal life this process exists as a separate ossicle, termed the os orbiculare. 1950 Philos. Trans. (Royal Soc.) B. 235 11 The crus longum..passes backwards and mesialwards towards the head of the stapes and there is here a nodule of cartilage that may represent an os orbiculare. 1978 Jrnl. Laryngol. & Otol. 92 453 The fourth auditory ossicle (the Os Orbiculare or Lenticulare, or the Osselet of Sylvius) was described and depicted in all books on anatomy or otology up to the turn of the century. Its presence is no longer observed nowadays, despite the thousands of micro-surgical operations performed on the middle ear and its ossicular chain. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1698
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