/ Dictionary / Index T tropopause: Meaning and Definition of Find definitions for: trop•o•pause Pronunciation: (trop'u-pôz", trō'pu-), [key] — n. Meteorol. the boundary, or transitional layer, between the troposphere and the stratosphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tropopause (Thesaurus) troponin tropophilous Related Content Daily Word Quiz: candid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language