/kem"euh stree/ , n. , pl. chemistries .
1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2).
2. chemical properties, reactions, phenomena, etc.: the chemistry of carbon.
3. the interaction of one personality with another: The chemistry between him and his boss was all wrong.
4. sympathetic understanding; rapport: the astonishing chemistry between the actors.
5. any or all of the elements that make up something: the chemistry of love.
[ 1590-1600; CHEMIST + -RY; r. chymistry, chimistry ]