jumper
jumper (jump"ẽr) , noun
1.
One who, or that which, jumps.
2.
A long drilling tool used by masons and quarrymen.
3.
A rude kind of sleigh; -- usually, a simple box on runners which are in one piece with the poles that form the thills. [United States] — J. F. Cooper
4.
(Zoology) The larva of the cheese fly. See Cheese fly, under Cheese.
5.
(Ecclesiastical) A name applied in the 18th century to certain Calvinistic Methodists in Wales whose worship was characterized by violent convulsions.
6.
(Horology) spring to impel the star wheel, also a pawl to lock fast a wheel, in a repeating timepiece.
Jumper , noun
[See 1st Jump.]
1.
A loose upper garment
(a)
A sort of blouse worn by workmen over their ordinary dress to protect it.
(b)
A fur garment worn in Arctic journeys.
2.
A sleeveless one-piece dress, either with full shoulders or straps, sometimes with only the front part of the bodice, usually worn by women with a blouse underneath.
jumper , noun
1.
(Mining, Quarrying, etc.) A thing that jumps; esp., any of various tools or other contrivances operating with a jumping motion;
(Mining, Quarrying, etc.) an instrument for boring holes in rocks by percussion without hammering, consisting of a bar of iron with a chisel-edged steel tip at one or both ends, operated by striking it against the rock, turning it slightly with each blow.
The contacts to which jumpers connect in commercially produced circuit boards are typically two closely spaced short stiff wires standing perpendicular to the plane of the circuit board, and the jumper has two holes with spacing identical to that of the contacts wires, so as to allow convenient insertion or removal of the jumper.
2.
(Electronics) a short wire, or a small plastic object containing such a short wire, used to optionally connect or disconnect two points in an electronic circuit, so as to include or exclude portions of the circuit and thus modify the function of the circuit. Such jumpers are much used to adapt add-on circuit boards for different conditions or functions within a computer.
jumper , transitive verb