monocycle

/ˈmɑnəˌsaɪkəl/
noun
  1. A vehicle with a single wheel, typically powered by pedals like a bicycle; a unicycle.
    • Riding a monocycle requires excellent balance and core strength.
    • He commutes to work on a monocycle to avoid traffic.
    • The circus performer balanced gracefully on a monocycle.
Synonyms
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