/ Dictionary / Index L low-grade: Meaning and Definition of Find definitions for: low-grade Pronunciation: (lō'grād'), [key] — adj. of an inferior quality, worth, value, etc.: The mine yields low-grade silver ore. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: low-grade (Thesaurus) Low German low ground 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