mi·​cro·​world ˈmī-krō-ˌwər(-ə)ld How to pronounce microworld (audio)
: a small universe
specifically : the natural universe observed at the microscopic or submicroscopic level

Examples of microworld in a Sentence

Recent Examples on the Web Hands have their own internal structure and principles of motion, which means that combining the way streaks tend to flow for a whole scene can easily miss what’s going on in the microworld of a hand. Jaron Lanier, The New Yorker, 1 Mar. 2024 And if other pollinators react to pollution in a similar way to hawk moths, then agricultural output, biodiversity and the microworlds of insects—which are crucial for the health of humans and other wildlife—may all be impacted when scents disappear. Christian Thorsberg, Smithsonian Magazine, 12 Feb. 2024 Logic demands that there does not exist an unknown, deterministic layer in the microworld. Lee Phillips, Ars Technica, 28 July 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'microworld.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
The first known use of microworld was in 1923

Dictionary Entries Near microworld

Cite this Entry

“Microworld.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microworld. Accessed 18 Jul. 2024.

More from Merriam-Webster on microworld

Love words? Need even more definitions?

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