/ Dictionary / Index L leader cable: Meaning and Definition of Find definitions for: lead'er ca"ble Pronunciation: [key] — Naut. Naut. a submarine cable laid along a channel and emitting signals that a vessel can follow when visibility is poor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. leader block leader head Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language