adjectival nouns or quasi-adjectives (keiyodoshi), nouns which may take the genitive case particle 'no', noun (common) (futsuumeishi)
1. unclean; dirty; impurenoun (common) (futsuumeishi)
2. bathroom; toilet (room)noun (common) (futsuumeishi), archaic
3. menstruation; menses- 4. feces; faeces