microbe

noun

mi·​crobe ˈmī-ˌkrōb How to pronounce microbe (audio)
microbial adjective
or less commonly microbic
microbially adverb

Did you know?

A hint of the Greek word bios, meaning "life", can be seen in microbe. 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 billions of microbes, and most of them are essential to our life. Much research is now going into possible microbial sources of future energy; algae looks particularly promising, as do certain newly discovered or created microbes that can produce cellulose, to be turned into ethanol and other biofuels.

Examples of microbe in a Sentence

Recent Examples on the Web
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This analysis is essential because these microbes can provide an early warning system for changes in environmental health, similar to how shifts in gut bacteria can indicate human health problems. Melissa Cristina Marquez, Forbes, 8 Dec. 2024 Faster digestion may help get more fiber and other undigested nutrients to the lower part of the gut, providing a feast for the microbes that live there, Damman says. Maria Godoy, NPR, 27 Nov. 2024 For example, undigested nutrients in the intestinal tract are metabolized by gut microbes. Alessandra Signorelli, Vogue, 26 Nov. 2024 Public health departments, as well as the CDC have long warned against the dangers of consuming raw milk, which has been responsible for outbreaks of Listeria, E. coli, Campylobacter and Salmonella, among other microbes. Victoria Forster, Forbes, 24 Nov. 2024 See all Example Sentences for microbe 

Word History

Etymology

International Scientific Vocabulary micr- + Greek bios life — more at quick entry 1

First Known Use

1878, in the meaning defined above

Time Traveler
The first known use of microbe was in 1878

Dictionary Entries Near microbe

Cite this Entry

“Microbe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microbe. Accessed 22 Dec. 2024.

Kids Definition

microbe

noun
mi·​crobe ˈmī-ˌkrōb How to pronounce microbe (audio)
microbial adjective
also microbic

Medical Definition

microbe

noun
mi·​crobe ˈmī-ˌkrōb How to pronounce microbe (audio)
: microorganism, germ
used especially of pathogenic bacteria

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