'Mesotrochal' definitions:

Definition of 'Mesotrochal'

From: GCIDE

Mesotrochal \Mes"o*tro`chal\, a. [Meso- + Gr. ? anything round, a hoop.] (Zool.) Having the middle of the body surrounded by bands of cilia; -- said of the larvae of certain marine annelids. [1913 Webster]