PISTON n.
om the steam, and in pumps to transmit motion to a fluid; also for other purposes. Piston head (Steam Eng.), that part of a piston which is made fast to the piston rod. -- Piston rod, a rod by which a piston is moved, or by which it communicates motion. -- Piston valve (Steam Eng.), a slide valve, consisting of a pis…
PIT n. 17 definitions
earth; mineral coal. -- Pit frame, the framework over the shaft of a coal mine. -- Pit head, the surface of the ground at the mouth of a pit or mine. -- Pit kiln, an oven for coking coal. -- Pit martin (Zoöl.), the bank swallow. [Prov. Eng.] -- Pit of the stomach (Anat.), the depression on the middle line of the e…