The Collaborative International Dictionary of English v.0.48:

Chiromancy \Chi"ro*mancy\, n. [Gr. chei`r hand + -mancy.]
   The art or practice of foretelling events, or of telling the
   fortunes or the disposition of persons by inspecting the
   hand; palmistry.
   [1913 Webster] Chiromanist

WordNet (r) 3.0 (2006):

chiromancy
    n 1: telling fortunes by lines on the palm of the hand [syn:
         palmistry, palm reading, chiromancy, chirology]