/ Dictionary / Index M morpho-: Meaning and Definition of Find definitions for: morpho- Pronunciation: [key] a combining form meaning “form, structure,” used in the formation of compound words: morphology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. -morphism morphogenesis Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language