Search Result for "trisyllable": 
Wordnet 3.0

NOUN (1)

1. a word having three syllables; 



The Collaborative International Dictionary of English v.0.48:

Trisyllable \Tri*syl"la*ble\, n. [Pref. tri- + syllable.]
   A word consisting of three syllables only; as, a-ven-ger.
   [1913 Webster]


WordNet (r) 3.0 (2006):

trisyllable
    n 1: a word having three syllables