/ Dictionary / Index C cross-vein: Meaning and Definition of Find definitions for: cross-vein Pronunciation: (krôs'vān", kros'-), [key] — n. Zool. a transverse vein that connects adjacent longitudinal veins in the wing of an insect. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cross-validation cross-vine Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language