GONIDIUM

Noun

gonidium (plural gonidia)

(lichenology, phycology) A photosynthetic algal cell in the thallus of a lichen; a similar asexual reproductive cell in some algae.

(zoology) A special groove or furrow at one or both angles of the mouth of many Anthozoa.

Source: Wiktionary

Go*nid"i*um, n. Etym: [NL., fr. Gr. (Zool.)

Definition: A special groove or furrow at one or both angles of the mouth of many Anthozoa.

Go*nid"i*um, n.; pl. Gonidia. Etym: [NL., fr. Gr. (Bot.)

Definition: A component cell of the yellowish green layer in certain lichens.

Source: Webster’s Unabridged Dictionary 1913 Edition