Definition of trisyllable in English:
 trisyllable
noun trʌɪˈsɪləb(ə)ltraɪˈsɪləbəl
A word or metrical foot of three syllables.
 Example sentencesExamples
-  When the word ‘scientist’ was first spoken in 1833, it was meant as a joke: its coinage first drew laughs and later was attacked as ‘an American barbarous trisyllable.’
 -  Exercises involving spondees and trisyllables in isolation and in simple sentences, as well as picture-based sentence identification exercises are included.
 -  A disyllable consists of two syllables, and a trisyllable of three.
 -  A disyllable or disyllabic word has two syllables, a trisyllable or trisyllabic word has three.
 -  The signal of the middle syllable of each trisyllable pronunciation is then extracted to make a synthesis unit.
 
  Definition of trisyllable in US English:
 trisyllable
nountrīˈsiləbəltraɪˈsɪləbəl
A word or metrical foot of three syllables.
 Example sentencesExamples
-  The signal of the middle syllable of each trisyllable pronunciation is then extracted to make a synthesis unit.
 -  A disyllable consists of two syllables, and a trisyllable of three.
 -  A disyllable or disyllabic word has two syllables, a trisyllable or trisyllabic word has three.
 -  When the word ‘scientist’ was first spoken in 1833, it was meant as a joke: its coinage first drew laughs and later was attacked as ‘an American barbarous trisyllable.’
 -  Exercises involving spondees and trisyllables in isolation and in simple sentences, as well as picture-based sentence identification exercises are included.