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n. pl. go·nid·i·a (-ē-ə)
An asexually produced cell that can generate a new colony, found in certain algae such as volvox.

[New Latin, from Greek gonos, seed, offspring; see gono-.]

go·nid′i·al adj.


n, pl -ia (-ɪə)
1. (Botany) a green algal cell in the thallus of a lichen
2. (Botany) an asexual reproductive cell in some colonial algae
[C19: from New Latin, diminutive from gono-]
goˈnidial, goˈnidic adj


(gəˈnɪd i əm)

n., pl. -nid•i•a (-ˈnɪd i ə)
1. (in algae) an asexual reproductive cell body, as a tetraspore or zoospore.
2. any of the algae that exist as a component of lichen.
[1835–45; < Greek gon- (see gonad) + -idium]