'Zygospore' definitions:

Definition of 'zygospore'

(from WordNet)
noun
A plant spore formed by two similar sexual cells

Definition of 'Zygospore'

From: GCIDE
  • Zygospore \Zyg"o*spore\, n. [Gr. zygo`n a yoke + E. spore.] (Bot.) (a) Same as Zygosperm. (b) A spore formed by the union of several zoospores; -- called also zygozoospore. [1913 Webster]