radula
/raj-oo-luh/US // ˈrædʒ ʊ lə //UK // (ˈrædjʊlə) //
雷达,桡骨,雷达状物,镭镭
Definitions
n.名词 noun
- 1
plural rad·u·lae [raj-oo-lee]. /ˈrædʒ ʊˌli/.
- : a chitinous band in the mouth of most mollusks, set with numerous, minute, horny teeth and drawn backward and forward over the floor of the mouth in the process of breaking up food.
Examples
Radula, rad′ū-la, n. the tongue or lingual ribbon of a mollusc.
Most numerous was Gigartina radula, just in a state of fructification.
I did my Biology at University College,—getting out the ovary of the earthworm and the radula of the snail, and all that.
Teeth of radula beam-like, and at most three marginal teeth on each side.
Hermaphrodite; head with appendage on right side; radula without central tooth.
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