WordReference Random House Unabridged Dictionary of American English © 2025
mi•cro•spore
(mī′krə spôr′, -spōr′),USA pronunciation n. [Bot.]
mi•cro•spor•ic
(mī′krə spôr′ik, -spor′-),USA pronunciation mi•cro•spor•ous
(mī krə spôr′əs, -spōr′-, mī kros′pər əs),USA pronunciation adj.
- Plant Biologythe smaller of the two kinds of spores characteristically produced by seed plants and some fern allies, developing into a male gametophyte. Cf. megaspore,
- Botanya pollen grain.
- 1855–60; micro- + -spore
'microspore' also found in these entries (note: many are not synonyms or translations):