2 definitions found From WordNet (r) 2.0 [wn]: tetraspore noun: one of the four asexual spores produced within a sporangium From The Collaborative International Dictionary of English v.0.44 [gcide]: Tetraspore \Tet"ra*spore\, noun [Tetra- + spore.] (Bot.) A nonsexual spore, one of a group of four regularly occurring in red seaweeds. -- {Tet'ra*spor"ic}, adjective

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