Trochal

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Trochal \Tro"chal\, a. [From Gr. ? a wheel.] (Zool.)
     Resembling a wheel.
     [1913 Webster]
  
     {Trochal disk} (Zool.), the cephalic disk of a rotifer. It is
        usually surrounded by a fringe of cilia.


        [1913 Webster]