fluidity

noun

flu·​id·​i·​ty flü-ˈi-də-tē How to pronounce fluidity (audio)
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
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.
Reading these two new plays this year, I was struck by the stylistic vigor and structural fluidity. — Theater Critic, Los Angeles Times, 8 July 2026 By this definition, a great many species exhibit some version of gender fluidity. — Elizabeth Kolbert, New Yorker, 22 June 2026 The fluidity of the fabrics felt perfectly in tune with the soaring Paris temperatures. — Rhonda Richford, Footwear News, 29 June 2026 Performances are judged on criteria including line choice, control, fluidity, technique and style rather than speed. — Michelle Bruton, Forbes.com, 7 July 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

Rhymes for fluidity

See All Rhymes for fluidity

Browse Nearby Words

fluidify
fluidity
fluidization
See all Nearby Words

Cite this Entry

“Fluidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluidity. Accessed 9 Jul. 2026.

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Kids Definition

fluidity

noun
flu·​id·​i·​ty flü-ˈid-ət-ē How to pronounce fluidity (audio)
: the quality or state of being fluid

Medical Definition

fluidity

noun
flu·​id·​i·​ty flü-ˈid-ət-ē How to pronounce fluidity (audio)
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

More from Merriam-Webster on fluidity

Nglish: Translation of fluidity for Spanish Speakers

Britannica.com: Encyclopedia article about fluidity

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