noun \ˈyü-ni-ˌsī-kəl\

: a vehicle that is similar to a bicycle but has only one wheel

Full Definition of UNICYCLE

:  a vehicle that has a single wheel and is usually propelled by pedals
uni·cy·clist \-ˌsī-k(ə-)list\ noun

Illustration of UNICYCLE

Origin of UNICYCLE

uni- + -cycle (as in tricycle)
First Known Use: 1869


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