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triphthong

Syllabification: (triph·thong)

Definition of triphthong

noun

  • a union of three vowels (letters or sounds) pronounced in one syllable (as in some pronunciations of our). Contrasted with diphthong, monophthong.
  • a vowel trigraph (as in beau).

Derivatives

triphthongal


adjective

Origin:

mid 16th century: from French triphtongue, from tri- 'three', on the pattern of diphthong

triphthong in other Oxford dictionaries

Definition of triphthong in the British & World English dictionary