(n.) The act or process of operating; agency; the exertion of
power, physical, mechanical, or moral.
(n.) The method of working; mode of action.
(n.) That which is operated or accomplished; an effect
brought about in accordance with a definite plan; as, military or naval
operations.
(n.) Effect produced; influence.
(n.) Something to be done; some transformation to be made
upon quantities, the transformation being indicated either by rules or
symbols.
(n.) 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.
