불청불탁不淸不濁 (아닐 불, 맑을 청, 아닐 불, 흐릴 탁)
bulcheongbultak
ENa word that refers to the common phonetic characteristics of the initial consonant system in Hunminjeongum: ㆁ (ㆁ, “ng”), ㄴ (n, “n”), ㅁ (m, “m”), ㅇ (', “ng”), ㄹ (l, “r”) and ㅿ (ㅿ, “z”) which corresponds to 疑母, 泥母, 孃母, 明母, 微母 and 喩母 in Chinese phonology.
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