/ Dictionary / Index T thyroid-stimulating hormone: Meaning and Definition of Find definitions for: thy'roid-stim•u•lat•ing hor"mone Pronunciation: (thī'roid stim"yu-lā"ting). [key] — Biochem. Biochem. thyrotropin. Abbr.: TSH Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thyroiditis thyrosis Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language