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monophthong Definition

mon·oph·thong (män′əf t̸hôŋ′)

noun

a simple vowel sound during the utterance of which the vocal organs remain in a relatively unchanging position, as (ä), (o̵o), or (i)

Etymology: < Gr monophthongos, of or with one sound < monos, single (see mono-) + phthongos, a sound, voice

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