/ Dictionary / Index S spavin: Meaning and Definition of Find definitions for: spav•in Pronunciation: (spav'in), [key] — n. Vet. Pathol. a disease of the hock joint of horses in which enlargement occurs because of collected fluidsbony growthor distention of the veins an excrescence or enlargement so formed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spavin (Thesaurus) spaulder spavined Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language