'Glochidia' definitions:

Definition of 'Glochidia'

From: GCIDE

Glochidium \Glo*chid"i*um\, n.; pl. Glochidia. [NL., fr. Gr. ? the point of an arrow.] (Zool.) The larva or young of the mussel, formerly thought to be a parasite upon the parent's gills. [1913 Webster]