/ Dictionary / Index L lactogenic hormone: Meaning and Definition of Find definitions for: lac'togen'ic hor'mone Pronunciation: [key] — Biochem. Biochem. prolactin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lactogenic lactometer Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language