/ Dictionary / Index A azygous: Meaning and Definition of Find definitions for: az•y•gous Pronunciation: (az'u-gus, ā-zī'-), [key] — adj. Biol. not being one of a pair; single. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: azygous (Thesaurus) azygospore azyme 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