/ Dictionary / Index V vas: Meaning and Definition of Find definitions for: vas Pronunciation: (vas), [key] — pl. va•sa a vessel or duct. vas- Pronunciation: [key] var. ofbefore a vowel: vasectomy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vas (Thesaurus) varying hare vasa murrhina Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language