of or pertaining to the hand; done or made by the hand; as, manual labor; the king's sign manual.-a small book, such as may be carried in the hand, or conveniently handled; a handbook; specifically, the service book of the roman catholic church.-a keyboard of an organ or harmonium for the fingers, as distinguished from the pedals; a clavier, or set of keys.-a prescribed exercise in the systematic handing of a weapon; as, the manual of arms; the manual of the sword; the manual of the piece (cannon, mortar, etc.).