Atrocha

1 definition found

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

  Atrocha \At`ro*cha\, n. [NL., fr. Gr. 'a priv. + ? a circle.]
     (Zool.)
     A kind of ch[ae]topod larva in which no circles of cilia are
     developed.
     [1913 Webster]