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obstruent
An obstruent is a speech sound such as , , or that is formed by ''obstructing'' airflow. Obstruents contrast with sonorants, which have no such obstruction and therefore resonate. All obstruents are consonants, whereas sonorants include vowels and consonants.
Obstruents are subdivided into plosives (oral stops), such as , with complete occlusion of the vocal tract, often followed by a release burst; fricatives, such as , with limited closure, not stopping airflow but making it turbulent; and affricates, which begin with complete occlusion but then release into a fricative-like release.〔Zsiga, Elizabeth. ''The Sounds of Language: An Introduction to Phonetics and Phonology''. Wiley-Blackwell, 2013.〕 Obstruents are prototypically voiceless, though voiced obstruents are common. This contrasts with sonorants, which are prototypically voiced and only rarely voiceless.
==See also==
*List of phonetics topics
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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