n. The art of measuring by the gaging-rod; a method of ascertaining the capacity of a hollow receptacle, but especially the liquid content of a cask or similar vessel, by the use of a graduated scale.n. In coal-mining, a small embankment or heap of slack or rubbish, made at the entrance to a heading, as a means of fencing it off.n. In needlework, the process of puckering a fabric by means of gathering-threads arranged in parallel rows; the work so done.n. Calcined gypsum added to plaster to regulate its rate of setting or hardening.