请输入您要查询的英文单词：

　

单词 radula
释义

radula

enUK

rad·u·la

R0018600 (răj′o͝o-lə)n. pl. rad·u·lae (-lē′) A flexible tonguelike organ found in most mollusks, having rows of horny teeth on the surface and used in feeding for scraping or cutting.
[Latin rādula, scraper, from rādere, to scrape; see rēd- in Indo-European roots.]
rad′u·lar adj.

radula

(ˈrædjʊlə) n, pl -lae (-ˌliː) (Zoology) a horny tooth-bearing strip on the tongue of molluscs that is used for rasping food[C19: from Late Latin: a scraping iron, from Latin rādere to scrape] ˈradular adj

rad•u•la

(ˈrædʒ ʊ lə)

n., pl. -lae (-ˌli) a tonguelike band in the mouth of most gastropods, set with rows of teeth. [1745–55; < New Latin rādula; Latin: scraper =rād(ere) to scrape, rub + -ula -ule] rad′u•lar, adj.

Radula

enUK

radula

[′raj·ə·lə] (invertebrate zoology) A filelike ribbon studded with horny or chitinous toothlike structures, found in the mouth of all classes of mollusks except Bivalvia.

Radula

 

an apparatus in mollusks, except bivalves, that rasps off and tears up food. The radula consists of a chitinous basal ribbon that lies on the surface of the tongue, the muscular out growth of the ventral wall of the pharynx. It is covered with cross rows of numerous, up to 75,000, chitinous teeth, the number, shape, and position of which serve as taxonomic criteria. The radula works like a dredge equipped with scoops. Its main function is to allow the mollusk to rasp off the food, which is then swallowed.

radula

enUK

radula

(răj′o͝o-lə)n. pl. radu·lae (-lē′) A flexible tonguelike organ found in most mollusks, having rows of horny teeth on the surface and used in feeding for scraping or cutting.
rad′u·lar adj.

radula

a rasping organ of molluscs situated in a sac on the underside of the BUCCAL cavity. It is used for tearing plant material by rubbing it against the hardened surface of the mouth.
随便看

　

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2024/12/23 0:51:08