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v. Present participle of jacket.

n. The material of a jacket.

n. The material, as cloth, felt, etc., from which a jacket is made.

n. A jacket; a cover or protection to an inanimate object, as the felt covering of a steam-pipe.

n. A thrashing.

Surrounding or protecting as a jacket: in physical, said of a layer of insulating material surrounding a calorimeter or other chamber to prevent the inflow or egress of heat.

"In some years, potentially, ordinary household wire may be available with non-halogenated jacketing, meaning that those damaging materials will not be entering into the environment as construction waste when it reaches its end-of-use."

jacket