The Collaborative International Dictionary
Trisyllabic \Tris`yl*lab"ic\, Trisyllabical \Tris`yl*lab"ic*al\, a. [L. trisyllabus, Gr. ?; ? (see Tri-) + ? a syllable: cf. F. trissyllabique.] Of or pertaining to a trisyllable; consisting of three syllables; as, ``syllable'' is a trisyllabic word. -- Tris`yllab"ic*al*ly, adv.
Wiktionary
a. having three syllables n. a word comprised of three syllables
Usage examples of "trisyllabic".
Since the end words are disyllabic or er yes trisyllabic but never monosyllabic.
Homage was paid to it in iambi and trochees, in trisyllabic feet, Buchnerian dactyls, and alexandrines, with metathesis, alliteration, internal rhymes, and nimble improvisations.
The rhythm of the train, of the steamer, formed itself into a single word, pounded out a single insistent trisyllabic word .
I am tempted to-day to go farther, and to maintain that, the larger, the sublimer, your subject is, the more impertinent rhyme becomes to it: and that this impertinence increases in a sort of geometrical progression as you advance from monosyllabic to dissyllabic and on to trisyllabic rhyme.
It is for one thing in a metre I invented (depending on trisyllabic assonances or near-assonances, which is so difficult that except in this one example I have never been able to use it again – it just blew out in a single impulse).