Found 1 items, similar to Pilidium.
English → English (gcide) Definition: Pilidium Pilidium \Pi*lid"i*um\, n.; pl. Pildia. [NL., fr. Gr. ?, dim. of ? a cap.] (Zo["o]l.) 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. [1913 Webster]