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handcycle

n. A land vehicle resembling a bicycle or tricycle but powered by the arms rather than the legs.

Wikipedia
Handcycle

A handcycle is a type of human-powered land vehicle powered by the arms rather than the legs, as on a bicycle. Most handcycles are tricycle in form, with two coasting rear wheels and one steerable powered front wheel. Despite usually having three wheels, they are also known as handbikes.