jack·et /ˈʤækət/ 名詞
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. Mil. In ordnance, a strengthening band surrounding and reënforcing the tube in which the charge is fired.
4. A garment resembling a waistcoat lined with cork, to serve as a life preserver; -- called also cork jacket.
Blue jacket. Naut. 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. [Colloq.]
Jack·et, v. t.
1. To put a jacket on; to furnish, as a boiler, with a jacket.
2. To thrash; to beat. [Low]
n 1: a short coat
2: an outer wrapping or casing; "phonograph records were sold
in cardboard jackets"
3: (dentistry) an artificial crown fitted over a broken or
decayed tooth [syn: jacket crown]
4: the outer skin of a potato
5: the tough metal shell casing for certain kinds of ammunition
v 1: provide with a thermally non-conducting cover; "The tubing
needs to be jacketed"
2: put a jacket on; "The men were jacketed"