trike

Etymology 1
Shortening of, modelled on.

Noun

 * 1) A tricycle, typically that of a child.
 * 2) A three-wheeled motorbike.
 * 3) A kind of railroad maintenance vehicle: a speeder or jigger.
 * 1) A kind of railroad maintenance vehicle: a speeder or jigger.

Verb

 * 1) To tricycle; to travel by tricycle.

Etymology 2
Shortening of.

Noun

 * 1)  A triceratops.