n. The act or process of forming into sheets or arranging in sheets: as, the sheeting of tobacco.n. Stout white linen or cotton cloth made wide for bed-sheets: it is sold plain or twilled, and bleached or unbleached.n. In hydraulic engineering, a lining of timber to a caisson or coffer-dam, formed of sheet-piles, or piles with planking between; also, any form of sheet-piling used to protect a river-bank.n. In milit engin., short pieces of plunk used in conjunction with frames to support the earth forming the top and sides of galleries.n. In carpenter-work, same as sheathing: a common term in the United States.n. The breaking up of a massive rock into relatively thin, parallel tabulæ united by closely spaced faults or joints.