pentaphthong

名词 n.

英文释义

名词 n.
  1. A sequence of five vowels pronounced as, or almost as, a single syllable. rare
    — Fifty-six diphthongal combinations may be made from the eight vowel elements, four of which, though, we find to be necessarily triphthongs, two tetraphthongs, and one a pentaphthong.

词形变化

pentaphthongs plural

词源

From penta- + -phthong, by analogy with diphthong, triphthong.
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