/ Dictionary / Index D differential topology: Meaning and Definition of Find definitions for: differen'tial topol'ogy Pronunciation: [key] — Math. Math. the branch of topology that studies the properties of differentiable manifolds that remain invariant under diffeomorphisms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. differential rate differential weathering Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language