cheirology, chirology 1. The technique of communicating by signs made with the hands and fingers; especially, in the manual alphabets used by the deaf and mute. 2. The study of the hand. 3. Telling fortunes by lines on the palm of the hand; synonyms: palmistry, palm reading, chiromancy. Found on http://www.wordinfo.info/words/index/info/view_unit/438/3