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