noun which may take the genitive case particle 'no'
septic; putrefactive
Technical term used in medical, biological, or chemical contexts to describe something that causes or relates to decay and infection.
Putrefactive bacteria entered through the wound.
This substance is septic, so it must be handled with care.
Compound of 腐敗 (decay, putrefaction) and 性 (nature, property). The exact historical derivation is uncertain, but the word follows a common pattern for forming technical adjectives.