Definition of "Jumper" :

noun: (basketball) a player releases the basketball at the high point of a jump

noun: a sleeveless dress resembling an apron; worn over other clothing

noun: a loose jacket or blouse worn by workmen

noun: a small connector used to make temporary electrical connections

noun: a coverall worn by children

noun: a crocheted or knitted garment covering the upper part of the body

noun: an athlete who competes at jumping

"He is one hell of a jumper."

noun: a person who jumps

"As the jumper neared the ground he lost control."