Microbial corrosion is the general process in which the presence of biological organisms or microorganisms brings about corrosion.
You might also find microbial corrosion referred to as:
Biocorrosion
Bacterial corrosion
Microbiologically influenced corrosion (MIC)
Microbially induced corrosion (MIC)
While not a single form of corrosion itself, microbial corrosion can accelerate a number of other corrosion processes, including:
Crevice corrosion
Galvanic corrosion
Pitting corrosion
Uniform corrosion
Intergranular corrosion
Stress corrosion cracking
Dealloying or selective leaching
Microbial corrosion can occur in various environments, including seawater, freshwater, soils, foodstuffs, demineralized water, sewage, aircraft petrol, human plasma, and process chemicals.