\Go*nid"i*um\, n. [NL., fr. Gr. ?, dim. of ? angle.]
(Zool.)
A special groove or furrow at one or both angles of the mouth
of many Anthozoa.

\Go*nid"i*um\, n.; pl. {Gonidia}. [NL., fr. Gr. ? that
which generates.] (Bot.)
A component cell of the yellowish green layer in certain
lichens.