/ Dictionary / Index L load line: Meaning and Definition of Find definitions for: load' line" Pronunciation: [key] — Naut. Naut. Also calledany of various lines marked on the sides of a cargo vessel to indicate the depth to which a vessel may be immersed under certain conditions. Cf. freeboard (def. 1a). the line made by the surface of the water on the hull of a loaded ship. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. loading coil load-line mark 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