/ Dictionary / Index B basidiospore: Meaning and Definition of Find definitions for: ba•sid•i•o•spore Pronunciation: (bu-sid'ē-ō-spôr", -spōr"), [key] — n. Mycol. a spore that is borne by a basidium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: basidiospore (Thesaurus) basidiomycota basidium Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language