pilidium Meaning, Definition & Usage

Pi*lid"i*um noun
Etymology
NL., fr. Gr. , dim. of a cap.
Wordforms
plural Pildia
Definitions
  1. (Zoöl.) The free-swimming, hat-shaped larva of certain nemertean worms. It has no resemblance to its parent, and the young worm develops in its interior.

Webster 1913