/ Dictionary / Index C chemistry: Meaning and Definition of Find definitions for: chem•is•try Pronunciation: (kem'u-strē), [key] — pl. -tries. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). chemical properties, reactions, phenomena, etc.: the chemistry of carbon. the interaction of one personality with another: The chemistry between him and his boss was all wrong. sympathetic understanding; rapport: the astonishing chemistry between the actors. any or all of the elements that make up something: the chemistry of love. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chemistry (Thesaurus) chemist chemmy 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