/ Dictionary / Index A aeciospore: Meaning and Definition of Find definitions for: ae•ci•o•spore Pronunciation: (ē'sē-u-spôr", -spōr", ē'shē-), [key] — n. Mycol. a spore borne by an aecium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aeciospore (Thesaurus) aecidium aecium Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language