/ Dictionary / Index L line vector: Meaning and Definition of Find definitions for: line' vec"tor Pronunciation: [key] — Mech. Mech. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lineup line voltage Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language