SHAPE v.
To adapt to a purpose; to regulate; to adjust; to direct; as, to shape the course of a vessel. To the stream, when neither friends, nor force, Nor spead nor art avail, he shapes his course. Denham. Charmed by their eyes, their manners I acqire, And shape my foolishness to their desire. Prior.
TAPPET n.
e, as a cam, or intended to tap or touch something else, with a view to produce change or regulate motion. G. Francis. Tappet motion, a valve motion worked by tappets from a reciprocating part, without an eccentric or cam, -- used in steam pumps, etc.
UNIT n.
pted in any system of weights, measures, or money, by which its several denominations are regulated, and which is itself defined by comparison with some known magnitude, either natural or empirical, as, in the United States, the dollar for money, the pound avoirdupois for weight, the yard for length, the gallon of 8.33…