1
: the quality or state of being fluid
2
: the physical property of a substance that enables it to flow

Examples of fluidity in a Sentence

Recent Examples on the Web
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The four thematic worlds included Earth, Water, Light and Sky, ranging from natural pigments and raw textures to fluidity and transparency; shimmer and light shadows, while the sky evoked infinity with voluminous and atmospheric surfaces. Mayu Saini, Footwear News, 16 Sep. 2026 However, the fluidity of his exploration is hardened early on, thanks to a tedious focus on hitting the same beats with little variety or escalation. Siddhant Adlakha, Variety, 13 Sep. 2026 There have been plenty of in-game rotations, promising combinations, fluidity and creativity, but without the delivery of a final hammer blow. Cerys Jones, New York Times, 11 Sep. 2026 There was a fluidity to their performance that treasured passion over technical precision. Larisha Paul, Rolling Stone, 15 Aug. 2026 See All Example Sentences for fluidity

Word History

First Known Use

1603, in the meaning defined at sense 1

Time Traveler
The first known use of fluidity was in 1603

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Cite this Entry

“Fluidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluidity. Accessed 21 Sep. 2026.

Kids Definition

fluidity

noun
: the quality or state of being fluid

Medical Definition

fluidity

noun
plural fluidities
1
: the quality or state of being fluid
2
a
: the physical property of a substance that enables it to flow
b
: the reciprocal of viscosity

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