Microbes, or microorganisms, include bacteria, protozoa, fungi, algae, amoebas, and slime molds. Many people think of microbes as simply the causes of disease, but every human is actually …

MICROBIAL definition: 1. relating to microbes (= very small living things, especially ones that cause disease): 2…. Learn more.

Microbes are essential tools in biology as model organisms and have been put to use in biological warfare and bioterrorism. Microbes are a vital component of fertile soil. In the human body, …

A minute life form; a microorganism, especially a bacterium that causes disease. Not in technical use. mi·cro′bi·al , mi·cro′bic adj. American Heritage®...

Definition of microbial adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Something that is microbial is related to or made up of tiny organisms that are too small to be seen with the naked eye, such as bacteria or viruses. A microbial infection is caused by such …

Dec 4, 2025 · Microorganisms are of incalculable value to Earth’s ecology, disintegrating animal and plant remains and converting them to simpler substances that can be recycled in other …