/ Dictionary / Index L lithogenous: Meaning and Definition of Find definitions for: li•thog•e•nous Pronunciation: (li-thoj'u-nus), [key] — adj. Geol. of or pertaining to organisms, as coral, that secrete stony deposits. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. litho lithograph Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language