/ Dictionary / Index G Galenism: Meaning and Definition of Find definitions for: Ga•len•ism Pronunciation: (gā'lu-niz"um), [key] — n. the medical system or principles of Galen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Galenic pharmacy galerie Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language