microphysics

1 of 2

noun

mi·​cro·​phys·​ics ˌmī-krō-ˈfi-ziks How to pronounce microphysics (audio)
: the physics of molecules, atoms, and elementary particles
microphysical adjective
microphysically adverb

microphysical

2 of 2

adjective

mi·​cro·​phys·​i·​cal ¦mī-krō-¦fi-zi-kəl How to pronounce microphysical (audio)
: of or relating to microphysics
events in the microphysical worldTime
microphysically adverb

Examples of microphysics in a Sentence

Recent Examples on the Web
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Noun
Cloud thickening and thinning, though taking place on more regional scales, rely altering the microphysics of clouds, long the wild card of climate change projections. Paul Voosen, Science | AAAS, 25 Mar. 2021 Very little is known about reentry dust production, the microphysics of the particles and how reentry dust could affect climate and ozone. Martin N. Ross, Scientific American, 6 Nov. 2020

Word History

Etymology

Adjective

from microphysics, after English physics : physical

First Known Use

Noun

1885, in the meaning defined above

Time Traveler
The first known use of microphysics was in 1885

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Cite this Entry

“Microphysics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microphysics. Accessed 26 Jun. 2026.

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