n.
Pronunciation: ˌ äk-t ə -s ə - ' la-bik
Function: adjective
Etymology: Late Latin octosyllabus, from Greek oktasyllabos, from okta- octa- + syllab ē syllable
Date: circa 1771
1 : consisting of eight syllables
2 : composed of verses of eight syllables
– octosyllabic noun