triphthong

play
noun triph·thong \ˈtrif-ˌthȯŋ, ˈtrip-\

Definition of triphthong

  1. 1 :  a phonological unit consisting of three successive vocalic sounds in one syllable

  2. 2 :  trigraph

triphthongal

play \trif-ˈthȯŋ-gəl, trip-, -əl\ adjective

Origin and Etymology of triphthong

tri- + -phthong (as in diphthong)


First Known Use: circa 1599


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