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