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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.


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


(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.
References in classic literature ?
I did my Biology at University College,--getting out the ovary of the earthworm and the radula of the snail, and all that.
The ground stratum vegetation is dominated by sedges, particularly Thatch Saw-sedge Gahnia radula and perennial grasses, forming a dense cover.
Synonyms: Spondylus calcifer Carpenter, 1857: 152; Spondylus radula Reeve, 1856: pi.
Effects of protandric sex change on radula, pedal morphology, and mobility in Crepidulu fecunda (Gastropoda: Calyptraeidae).
Radula, writes in court documents that, in all, he seized a black shoe, paperwork with Sabrina Hatheway's name, a cigarette lighter, samples of two mattress stains, a patterned bed blanket, a section of linoleum floor from the bedroom, two sections of floor from under the bed, and sink traps from the bathroom, kitchen and bathtub as well as the bedroom mattress and box spring.
Shell abrasion is often associated with physical transport but it also can occur when the predator uses its radula and/or shell to abrade the shelled prey (Glaub et al.
X Grolle Plagiochila species 01 X Radula mammosa Spruce X CA Calymperes rubiginosum (Mitt.
Scanning electron micrographs were taken using a Hitachi S-2400 and a JSM-5200 (at the MZB), with specimens used for SEM partly disarticulated, enabling examination of valves, perinotum, and radula.
The slightly younger Wiwaxia was covered in scale-like and spine-like structures even closer to those of the polychaetes, and also possessed a radula diagnostic of mollusks.