1. the way two individuals relate to each other - their chemistry was wrong from the beginning -- they hated each other - a mysterious alchemy brought them together • Syn: chemistry, interpersonal chemistry • Hypernyms: social relation 2. a pseudoscientific forerunner of chemistry in medieval times • Derivationally related forms: alchemic, alchemist, alchemical, alchemize • Members of this Topic: athanor • Hypernyms: pseudoscience