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单词 mastoidal
释义

mastoidaladj.

Brit. /maˈstɔɪdl/, U.S. /ˌmæˈstɔɪd(ə)l/
Origin: Formed within English, by derivation. Etymons: mastoid adj., -al suffix1.
Etymology: < mastoid adj. + -al suffix1. Compare mastoideal adj. (also earliest in Knox).
Anatomy and Zoology.
Of, relating to, or connected with the mastoid process or bone; = mastoid adj. 2.
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the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > bones of temple
sternomastic1745
stylomastoid1797
mastoid1800
mastoidean1824
mastoidal1828
mastoideal1828
stylohyoid1840
paroccipital1849
bitemporal1850
squamosal1863
stylohyal1880
1828 R. Knox tr. H. Cloquet Syst. Human Anat. 65 The mastoid process..limited before by the meatus auditorius externus. It is limited behind by the mastoidal suture [Fr. la suture mastoïdienne].
1835–6 Todd's Cycl. Anat. & Physiol. I. 736/1 The angles contained within these borders are the frontal..; the mastoidal, truncated and articulated with the mastoid process of the temporal bone; [etc.].
1881 St. G. Mivart Cat 66 This triangular tract is the mastoidal region of the temporal bone.
1994 Amer. Jrnl. Otol. 15 276 Two unique instances of purulent discharge external to an intact tympanic membrane via a fistula caused by extensive mastoidal erosion.
This entry has been updated (OED Third Edition, March 2001; most recently modified version published online June 2022).
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adj.1828
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