蔓生
  まんせい
  noun (common) (futsuumeishi)
  noun or participle which takes the aux. verb suru
  creeping (i.e. growing along the ground, etc. similar to a vine)
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  慢性
  まんせい
  noun (common) (futsuumeishi)
  nouns which may take the genitive case particle `no'
  chronicity
  chronic
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