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