aditusn.

Brit.

/ˈadᵻtəs/, U.S.

/ˈædədəs/

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

Etymology: < classical Latin aditus, literally ‘approach’ (see adit n.). Compare earlier (in different sense) adit n.In aditus ad antrum after scientific Latin aditus ad antrum, literally ‘entrance into the cavity’ (1866 in a German context, or earlier). Compare antrum n.

1. Anatomy and Zoology. The opening of or entrance into a cavity or channel (frequently with distinguishing scientific Latin word or phrase denoting the cavity or channel); esp. (more fully aditus ad antrum) the opening between the tympanic cavity and the mastoid antrum.

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 > life > the body > sense organ > hearing organ > parts of hearing organ > [noun] > other cavities > specific part

aditus ad antrum1889

1839 R. Dunglison Med. Lexicon (ed. 2) 15/1 Aditus, the entrance to a canal or duct.

1849–52 Todd's Cycl. Anat. & Physiol. IV. ii. 1502/1 The voice [in Boa] is reduced to a mere hissing sound, which is produced by the breath passing over the edges of the aditus laryngis.

1889 Arch. Otol. 18 320 Malleus and incus were surely missing, nor could those ossicles have had room in the fissure which was found to replace the normal aditus ad antrum.

1955 R. Macintosh & M. Ostlere Local Analgesia Head & Neck ii. 26 After a short course backwards the nerve reaches the medial wall and floor of the aditus in the angle between the medial and posterior walls of the middle ear.

1989 J. A. B. Collier & J. M. Longmore Oxf. Handbk. Clin. Specialties (ed. 2) vii. 530 Posteriorly, there is communication via the aditus and tympanic antrum to the mastoid air cells.

2005 Jrnl. Phonetics 33 386 The laryngeal vestibule is defined as the supraglottal cavity of the larynx that extends from the ventricle of the larynx upwards through the aditus laryngis.

†2. Zoology. An incurrent canal in a sponge, constituting an extension of a prosopyle Obsolete. rare.

ΚΠ

1887 W. J. Sollas in Encycl. Brit. XXII. 415/1 The prosopyles..may..be prolonged into..a prosodus or aditus.

Derivatives

† adital adj. Zoology Obsolete rare

ΚΠ

1887 W. J. Sollas in Encycl. Brit. XXII. 415/1 By the extension of the prosodal or adital canals..a still higher differentiation is reached.

This entry has been updated (OED Third Edition, December 2011; most recently modified version published online June 2022).

单词	aditus
释义	aditusn. Brit. /ˈadᵻtəs/, U.S. /ˈædədəs/ Origin: A borrowing from Latin. Etymon: Latin aditus. Etymology: < classical Latin aditus, literally ‘approach’ (see adit n.). Compare earlier (in different sense) adit n.In aditus ad antrum after scientific Latin aditus ad antrum, literally ‘entrance into the cavity’ (1866 in a German context, or earlier). Compare antrum n. 1. Anatomy and Zoology. The opening of or entrance into a cavity or channel (frequently with distinguishing scientific Latin word or phrase denoting the cavity or channel); esp. (more fully aditus ad antrum) the opening between the tympanic cavity and the mastoid antrum. 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 > life > the body > sense organ > hearing organ > parts of hearing organ > [noun] > other cavities > specific part aditus ad antrum1889 1839 R. Dunglison Med. Lexicon (ed. 2) 15/1 Aditus, the entrance to a canal or duct. 1849–52 Todd's Cycl. Anat. & Physiol. IV. ii. 1502/1 The voice [in Boa] is reduced to a mere hissing sound, which is produced by the breath passing over the edges of the aditus laryngis. 1889 Arch. Otol. 18 320 Malleus and incus were surely missing, nor could those ossicles have had room in the fissure which was found to replace the normal aditus ad antrum. 1955 R. Macintosh & M. Ostlere Local Analgesia Head & Neck ii. 26 After a short course backwards the nerve reaches the medial wall and floor of the aditus in the angle between the medial and posterior walls of the middle ear. 1989 J. A. B. Collier & J. M. Longmore Oxf. Handbk. Clin. Specialties (ed. 2) vii. 530 Posteriorly, there is communication via the aditus and tympanic antrum to the mastoid air cells. 2005 Jrnl. Phonetics 33 386 The laryngeal vestibule is defined as the supraglottal cavity of the larynx that extends from the ventricle of the larynx upwards through the aditus laryngis. †2. Zoology. An incurrent canal in a sponge, constituting an extension of a prosopyle Obsolete. rare. ΚΠ 1887 W. J. Sollas in Encycl. Brit. XXII. 415/1 The prosopyles..may..be prolonged into..a prosodus or aditus. Derivatives † adital adj. Zoology Obsolete rare ΚΠ 1887 W. J. Sollas in Encycl. Brit. XXII. 415/1 By the extension of the prosodal or adital canals..a still higher differentiation is reached. This entry has been updated (OED Third Edition, December 2011; most recently modified version published online June 2022). < n.1839
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