jumper

A kind of loose jacket with sleeves worn by some classes of laborers, as seamen and stevedores, usually with overalls, reaching to the thighs, and buttoned the whole length in front; also, any upper garment of similar shape.

One who is registered and votes fraudulently in several places.

One who is affected with the jumping-disease.

One who or that which jumps. Specifically

One who practises leaping or dancing as a part of divine worship.

One who jumps a claim to land.

In zoology any animal which habitually jumps, leaps, or hops as a mode of progression.

In mech., a tool or contrivance which works with a jumping motion.

A bit used in a jointer.