资料来源 : pyDict

三音节的字

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Trisyllable \Tri*syl"la*ble\, n. [Pref. tri- + syllable.]
   A word consisting of three syllables only; as, a-ven-ger.

资料来源 : WordNet®

trisyllable
     n : a word having three syllables