Microbial (adjective)

Relating to or caused by microbes.

Origin:

From microbe + -al.

Examples:

1. The disease was caused by a microbial infection.
2. The researcher is studying the microbial diversity in the ocean.
3. The microbial population in soil is essential for the fertility of the land.
4. The microbial community in the gut plays an important role in human health.
5. Antibiotics are used to treat microbial infections.