/ Dictionary / Index L lithoid: Meaning and Definition of Find definitions for: lith•oid Pronunciation: (lith'oid), [key] — adj. resembling stone; stonelike. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lithography lithol. 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