英语词汇“premolar”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

premolar

释义

premolar, n. (a.)|priːˈməʊlə(r)|
[f. pre- B. 3 + molar. Cf. F. pré-molaire.]
A. n. One of the set of molar teeth in front of the true molars, replacing the molars or grinders of the milk dentition; a false molar, in man called ‘bicuspid’.
(Sometimes erroneously applied to a molar of the deciduous dentition.)
1842Owen in Brande Dict. Sci., etc. 326/2 The teeth..which are analogous to the bicuspids in man are called ‘præmolars’ or spurious molars [in mammalia generally].1849–52Todd's Cycl. Anat. IV. 903/1 Those grinders which succeed the deciduous ones..are called ‘premolars’.1861Hulme tr. Moquin-Tandon ii. iii. ii. 114 The Civet..is characterized by the possession of three false molars (premolars of Owen).1863Huxley Man's Place Nat. ii. 81. 1872 Mivart Elem. Anat. vii. 253 The bicuspid molars of man..are in zootomy termed premolars because they are placed in front of the true molars.1897[see prelacteal].
B. adj. Situated in front of the (true) molars; that is a premolar.
1880Haughton Phys. Geog. vi. 283 The last premolar tooth has gone over to the molar series.

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