/ Dictionary / Index V veining: Meaning and Definition of Find definitions for: vein•ing Pronunciation: (vā'ning), [key] — n. the act or process of forming veins or an arrangement or marking resembling veins. a vein or a pattern of veins or markings suggesting veins. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: veining (Thesaurus) vein veinlet 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