the act or process of operating; agency; the exertion of power, physical, mechanical, or moral.-the method of working; mode of action.-that which is operated or accomplished; an effect brought about in accordance with a definite plan; as, military or naval operations.-effect produced; influence.-something to be done; some transformation to be made upon quantities, the transformation being indicated either by rules or symbols.-any methodical action of the hand, or of the hand with instruments, on the human body, to produce a curative or remedial effect, as in amputation, etc.