Definition of jumper

• n. - One who, or that which, jumps.
• n. - A long drilling tool used by masons and quarrymen.
• n. - A rude kind of sleigh; -- usually, a simple box on runners which are in one piece with the poles that form the thills.
• n. - The larva of the cheese fly. See Cheese fly, under Cheese.
• n. - A name applied in the 18th century to certain Calvinistic Methodists in Wales whose worship was characterized by violent convulsions.
• n. - spring to impel the star wheel, also a pawl to lock fast a wheel, in a repeating timepiece.
• n. - A loose upper garment
• n. - A sort of blouse worn by workmen over their ordinary dress to protect it.
• n. - A fur garment worn in Arctic journeys.