PIPE n.
A cask usually containing two hogsheads, or 126 wine gallons; also, the quantity which it contains. Pipe fitter, one who fits pipes together, or applies pipes, as to an engine or a building. -- Pipe fitting, a piece, as a coupling, an elbow, a valve, etc., used for connecting lengths of pipe or as accessory to a pipe.…
UNIT n.
s 1 foot, 1 yard, 1 mile, 1 square foot, 1 square yard, 1 cubic foot, 1 peck, 1 bushel, 1 gallon, 1 cent, 1 ounce, 1 pound, 1 hour, and the like; more specifically, the fundamental unit adopted in any system of weights, measures, or money, by which its several denominations are regulated, and which is itself defined by…