- 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.