— unicyclist , n.
/yooh"neuh suy'keuhl/ , n. , v. , unicycled, unicycling .
n.
1. a vehicle with one wheel, esp. a pedal-driven device kept upright and steered by body balance, commonly used by acrobats and other performers.
v.i.
2. to ride a unicycle.
[ 1865-70, Amer.; UNI- + CYCLE ]