decasyllabic /dɛkəsɪˈlæbɪk/adjective 2noun 1forms 1 adjective2 •Having ten syllables.The accomplishment was nothing. The meticulous maps, drawn in three colors of ink, learning and spelling decasyllabic words, memorizing the whole of The Rape of Lucrece—it was for nothing. — 1969 •Composed of decasyllables. noun1 •A decasyllable.an English sonnet written in decasyllabics formsdecasyllabics
