Definition - jacket

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jacket

a short coat
To put a jacket on; to furnish, as a boiler, with a jacket.
A short upper garment, extending downward to the hips; a short coat without skirts.
provide with a thermally non-conducting cover; "The tubing needs to be jacketed"
put a jacket on; "The men were jacketed"
the outer skin of a potato
(dentistry) an artificial crown fitted over a broken or decayed tooth
the tough metal shell casing for certain kinds of ammunition
an outer wrapping or casing; "phonograph records were sold in cardboard jackets"
a hooded jacket