noun which may take the genitive case particle 'no', noun
microbial
Used as a no-adjective or noun to describe something of or relating to microorganisms, often in scientific or medical contexts.
Microbial contamination has become a problem.
This disease is caused by a microbial agent.
微生物 is the noun 'microorganism'; 微生物性 adds the suffix 性 to mean 'microbial' or 'of microorganisms'.
Compound of 微生物 (microorganism) + 性 (nature, property), forming a no-adjective meaning 'microbial'.