Jacket

·vt To put a jacket on; to furnish, as a boiler, with a jacket.

II. Jacket ·vt To Thrash; to Beat.

III. Jacket ·noun A short upper garment, extending downward to the hips; a short coat without skirts.

IV. Jacket ·noun In ordnance, a strengthening band surrounding and reenforcing the tube in which the charge is fired.

V. Jacket ·noun A garment resembling a waistcoat lined with cork, to serve as a life preserver;

— called also cork jacket.

VI. Jacket ·noun An outer covering for anything, ·esp. a covering of some nonconducting material such as wood or felt, used to prevent radiation of heat, as from a steam boiler, cylinder, pipe, ·etc.