Definify.com
Webster 1913 Edition
Jacket
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
,Verb.
T.
1.
To put a jacket on; to furnish, as a boiler, with a jacket.
2.
To thrash; to beat.
[Low]
Webster 1828 Edition
Jacket
JACK'ET
,Noun.