polyphthongとは 意味・読み方・使い方

名詞

polyphthong (plural polyphthongs)

1. (phonetics) A phoneme that begins with the sound of one vowel or semivowel and transitions through one or more other (semi)vowel sounds.
   • 1973, Journal of the Chinese Language Teachers Association, page 65:

     The teacher who uses Pinyin without knowing about such things as the place of the tone symbol in the case of polyphthong finals is merely incompetent but the teacher who supports the student in developing false notions about the language norm by adopting a systematically casual attitude to its technical aspects, can cause much greater harm.

   • 1997, Ilse Lehiste, Jaan Ross, Estonian Prosody: Papers from a Symposium:

     A syllable is short when ending in a short monophthong or in a short polyphthong; a syllable is long when ending in a consonant or in a long monophthong or a long polyphthong.

   • 2012, Kingsley Amis, Memoirs, →ISBN, page 292:

     With small preliminary he told Russ and me something like the following - I have normalised his speech in the interests of general sanity, though his polyphthongs ('hayyut' for 'hat', 'bawun' for 'born', etc.) were of the rarest quality.

2. (phonetics) A diaphoneme realized as a multitarget vowel in some but not necessarily all dialects.