老化 [ㄌㄠˇ ㄏㄨㄚˋ; lao3 hua4]
to age (of person or object)
becoming old
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老化
ろうか
noun (common) (futsuumeishi)
noun or participle which takes the aux. verb suru
nouns which may take the genitive case particle `no'
ageing
aging
senile deterioration
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