adjective tri·syl·lab·ic \ˌtrī-sə-ˈla-bik\

Definition of trisyllabic

  1. :  having three syllables a trisyllabic word

Origin and Etymology of trisyllabic

Latin trisyllabus, from Greek trisyllabos, from tri- + syllabē syllable

First Known Use: circa 1637

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