diphthongous

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• diphthong — diphthongal /dif thawng geuhl, thong , dip /, diphthongic, diphthongous, adj. /dif thawng, thong, dip /, n. 1. Phonet. an unsegmentable, gliding speech sound varying continuously in phonetic quality but held to be a single sound or phoneme and… …   Universalium