IPA: /maɪˈkroʊbiəl/
KK: /maɪˈkroʊbiəl/
Relating to very small living things, such as bacteria and viruses, that can only be seen with a microscope.
The researchers studied the microbial life in the soil to understand its impact on plant growth.
Microbial → It is formed from "micro-" (from Greek "mikros", meaning small) and "bialis" (from Latin "biālis", meaning pertaining to life). The word "microbial" refers to things that are related to or characteristic of small life forms, particularly microorganisms.
Think of 'small' ('micro-') living things ('bialis') when you hear 'microbial', as it describes tiny life forms.