Jacket /(?)/

Jack·et

Jacket

n.
  1. A short upper garment, extending downward to the hips; a short coat without skirts.
  2. 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.
  3. In ordnance, a strengthening band surrounding and reënforcing the tube in which the charge is fired. (Mil.)
  4. A garment resembling a waistcoat lined with cork, to serve as a life preserver; -- called also cork jacket.

Phrases & Compounds
Blue jacket
See under Blue.
Steam jacket
a space filled with steam between an inner and an outer cylinder, or between a casing and a receptacle, as a kettle.
To dust one's jacket
to give one a beating.

Jacket

v. t.
  1. To put a jacket on; to furnish, as a boiler, with a jacket.
  2. To thrash; to beat. [Low]