Trochal disk
Trochal Tro"chal, a. [From Gr. ? a wheel.] (Zo["o]l.) Resembling a wheel. [1913 Webster]

{Trochal disk} (Zo["o]l.), the cephalic disk of a rotifer. It is usually surrounded by a fringe of cilia. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • trochal disk — …   Useful english dictionary

  • Trochal — Tro chal, a. [From Gr. ? a wheel.] (Zo[ o]l.) Resembling a wheel. [1913 Webster] {Trochal disk} (Zo[ o]l.), the cephalic disk of a rotifer. It is usually surrounded by a fringe of cilia. [1913 Webster] …   The Collaborative International Dictionary of English

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