/ Dictionary / Index T tetrasporangium: Meaning and Definition of Find definitions for: tet•ra•spo•ran•gi•um Pronunciation: (te"tru-spô-ran'jē-um, -spō-), [key] — pl. -gi•a a sporangium containing four asexual spores. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tetrasporangium (Thesaurus) tetrarch tetraspore Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language