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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Earth’s earliest forms of calcite, for example, developed through the watery alteration of meteorites; microbes then began to build other calcite structures 2.5 billion years ago, whereas snails and clams created new combinations beginning only 100 million years ago. Paul Voosen, science.org, 1 Nov. 2024 Scientists say the slime in your dishwasher could unlock a solution to global warming Scientists have scoured the ocean and outer space for microbes to help slow global warming. Alexandra Banner, CNN, 24 Oct. 2024 Once the gut barrier is breached, even friendly microbes can stir up inflammation, causing health issues ranging from overweight to obesity, infection to autoimmune disease, and mild cognitive impairment to Alzheimer’s. Christopher Damman, Discover Magazine, 23 Oct. 2024 In the Amazon’s tropical wetlands, where warm and moist conditions favor methane-producing microbes, emissions are on the rise. Sergey Buchin, Forbes, 23 Oct. 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 21 Nov. 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

More from Merriam-Webster on microbe

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!