chiˈrosophy Also cheir-. [f. as prec., after philosophy, etc.] †1. The science of the hand. 1644Bulwer Chirol. & Chiron. 126, I could furnish a Prevaricator in Chirosophie, with some notions. 2.= chirognomy or chiromancy (or both). 1885Heron-Allen (title) A Manual of Cheirosophy.