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 the host to …

MICROBIAL meaning: 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, …

relating to microorganisms (= extremely small living things), especially bacteria that cause disease or fermentation. Microbial contamination is always a risk during surgery. Natural yogurt helps to …

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 life forms.

Dec 4, 2025 · The organisms that constitute the microbial world are characterized as either prokaryotes or eukaryotes; all bacteria are prokaryotic—that is, single-celled organisms without a membrane …

Dec 23, 2025 · microbial (not comparable) Of, relating to, or caused by microbes or microorganisms. quotations

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®...

Jul 31, 2025 · Microbial life encompasses organisms too small to be seen without a microscope, present across Earth’s diverse environments. These microscopic entities exist in virtually every corner of the …

Relating to microorganisms and their activities, including bacteria, archaea, fungi, protozoa and viruses. The adjective “ microbial ” refers to anything associated with microscopic life forms.