Trochosphere

1 definition found

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

  Trochosphere \Troch"o*sphere\, n. [Gr. ? a wheel + sphere.]
     (Zool.)
     A young larval form of many annelids, mollusks, and
     bryozoans, in which a circle of cilia is developed around the
     anterior end.
     [1913 Webster]