heterodont
[医] 异形牙的
发音
词形变化
释义与例句
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1.
A heterodont animal.
生物 动物学 -
2.
A heterodont animal.
A heterodont bivalve.
生物 动物学 -
3.
A snake of the genus Heterodon which is native to North America.
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1.
Having teeth of different types (like most mammals).
生物 动物学 -
2.
Of bivalves or their hinge teeth: having two to three wedge-shaped cardinal teeth set in the centre near the umbones, generally also with elongated lateral teeth on the anterior and posterior margins.
生物The heterodont arrangement is characteristic of the Venus clams and cockles.
词源
From hetero- (prefix meaning ‘different’) + -odont (suffix meaning ‘tooth; toothed’). Hetero- is derived from Ancient Greek ἕτερος (héteros, “one or the other of two; different”), ultimately from Proto-Indo-European *sem- (“together; one”); while -odont is from Ancient Greek ὀδούς (odoús, “tooth; tusk”), ultimately from Proto-Indo-European *h₃ed- (“to bite”) + *-ónts (suffix forming nouns denoting body parts). By surface analysis, hetero- + -odont.
来源：wiktionary