triolets

/ˈtraɪəˌlɛts/
noun
  1. A short poem of eight lines with a specific rhyme scheme and repetition, often used in light or playful verse.
    • The poetry club challenged members to compose a triolet in under an hour.
    • She wrote a charming triolet about the first snowfall.
    • His triolet repeated the opening line twice, giving it a musical feel.