0 Old HSK word(s):
牙垢* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

牙 tooth, molars, teeth / serrated
垢 dirt, filth, stains / dirty

Hsk Characters:
HSK -Characters and beyond:
from: Universala Vortaro, Zamenhof









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Zahnstein, Zahnbelag (S) [ya2 gou5] 牙垢