/ Dictionary / Index E endosporium: Meaning and Definition of Find definitions for: en•do•spo•ri•um Pronunciation: (en"du-spôr'ē-um, -spōr'-), [key] — pl. -spo•ri•a intine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. endospore endosteum Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language