megaspore

US:USA pronunciation: respellingUSA pronunciation: respelling(meg′ə spôr′, -spōr′)


WordReference Random House Unabridged Dictionary of American English © 2026
meg•a•spore  (meg′ə spôr′, -spōr′),USA pronunciation n. [Bot.]
  1. Plant Biologythe larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Cf. microspore. 
  2. Botanythe embryo sac of a flowering plant.
Also called macrospore. 
  • 1885–90; mega- + spore
meg•a•spor•ic  (meg′ə spôr′ik, -spor′-),USA pronunciation adj. 
'megaspore' also found in these entries (note: many are not synonyms or translations):
embryo sac - homospory - macrospore - microspore

Forum discussions with the word(s) "megaspore" in the title:


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