adj.

Containing 11 syllables.

n.

A verse of 11 syllables.

[From Latin hendecasyllabus, a line of eleven syllables, from Greek hendekasullabos : hendeka, eleven (hen, neuter of heis, one + deka, ten; see decade) + sullabē, syllable; see syllable.]

hendecasyllable hen·dec'a·syl'la·ble (-sĭl'ə-bəl) n.

[(n), a] (a verse or poem) consisting of eleven syllables