Wordnet 3.0
NOUN (1)
1. 
 the way two individuals relate to each other; 
- Example: "their chemistry was wrong from the beginning -- they hated each other"- Example: "a mysterious alchemy brought them together"[syn: chemistry, interpersonal chemistry, alchemy]
WordNet (r) 3.0 (2006):
interpersonal chemistry
    n 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, alchemy]