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

Example Sentences

Recent Examples on the Web 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 28 May. 2023.

More from Merriam-Webster on microworld

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