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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Instead their stomachs host an army of trillions of microbes to do the job. Marianne Krasny, Forbes, 13 Jan. 2025 Holscher points to a 2018 study that found that people who ate more than 30 different types of plant foods each week also had more gut microbes that produce chemical messengers known to boost health. Maria Godoy, NPR, 10 Jan. 2025 These microbes are cultivated in tanks and fed carbon feedstocks, such as sugar, to synthesize the textile dye. Angela Velasquez, Sourcing Journal, 6 Jan. 2025 Extreme Microbes and space colonization There are microbes on Earth that can survive in extremely harsh environments. Blaise Manga Enuh, Discover Magazine, 6 Jan. 2025 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 17 Jan. 2025.

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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