O.E.D. 1. a. Characterized by operating or working; being in operation or force; (also) exerting force or influence, or active in producing or having the power to produce effects; productive of something.
in business to get where you are going you have to know where you are
O.E.D. 1. a. Characterized by operating or working; being in operation or force; (also) exerting force or influence, or active in producing or having the power to produce effects; productive of something.