A microorganism, or microbe, [a] is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was …

Apr 5, 2022 · Microbes are tiny living things that are found all around us. Also known as microorganisms, they are too small to be seen by the naked eye. They live in water, soil, and …

The "microbe" category includes microscopic plants. Most microscopic plants are counted among the “green algae” (a general term), and they live as single cells (sometimes with flagella) or …

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 …

Microbes are organisms that are too small to be seen without using a microscope, so they include things like bacteria, archaea, and single cell eukaryotes — cells that have a nucleus, like an …

MICROBE definition: 1. a very small living thing, especially one that causes disease, that can only be seen with a…. Learn more.

Jun 16, 2022 · A microbe refers to any of the microorganisms, especially those causing diseases or infections. The term microbe was coined to refer collectively to microscopic organisms, …

Oct 13, 2025 · The word microbe was coined in the last quarter of the 19th century to describe these organisms, all of which were thought to be related. As microbiology eventually …

Feb 15, 2024 · Microbes, or microorganisms, are extremely small living organisms that can only be observed using microscopes. Most microbes are unicellular (single-celled), although some …

A microbe, or microorganism, is a microscopic organism that comprises either a single cell (unicellular); cell clusters; or multicellular, relatively complex organisms.