fluid

adjective
flu·​id | \ˈflü-əd \

Definition of fluid 

(Entry 1 of 2)

1a : having particles that easily move and change their relative position without a separation of the mass and that easily yield to pressure : capable of flowing a long screw that forces the fluid chocolate through fine openingsTechnical Survey

b : subject to change or movement boundaries became fluid

2 : characterized by or employing a smooth easy style the ballerina's fluid movements fluid recitation of his lines

3a : available for various uses a fluid computer program

b : liquid sense 4 fluid assets

fluid

noun

Definition of fluid (Entry 2 of 2)

: a substance (such as a liquid or gas) tending to flow or conform to the outline of its container

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Other Words from fluid

Adjective

fluidly adverb
fluidness noun

Noun

fluidal \ ˈflü-​ə-​dᵊl \ adjective
fluidally \ ˈflü-​ə-​dᵊl-​ē \ adverb
fluidlike \ ˈflü-​ə-​dᵊl-​ˌlīk \ adjective

Examples of fluid in a Sentence

Adjective

a substance in a fluid state warm the jam until it is fluid, then spread it over the cake

Noun

Please check the fluids in the car's engine. She needs to drink plenty of fluids. Fluid leaked from the car's engine. a bottle of yellow fluid
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Recent Examples on the Web: Adjective

Excepting a few stutters, animation was not just smooth and fluid, but also genuinely helpful in showing you what’s going on. Dieter Bohn, The Verge, "Lenovo Smart Display review: the Google appliance," 26 July 2018 Our social identities are markedly more fluid these days—mirrored in shows like Riverdale, Drag Race, Pose and Orange Is the New Black. Jason Parham, WIRED, "On the New Season of Queer Eye, Learning Goes Both Ways," 15 June 2018 In today’s world, when, where, and how one shows can be looser and more fluid than ever and so for now, NY is our home once again. Diana Tsui, The Cut, "Proenza Schouler Is Coming Back to New York Fashion Week," 7 June 2018 The Associated Press reported that some fissures were merging and producing faster and more fluid lava, which began flowing in glowing rivers toward the Pacific Ocean. Alan Taylor, The Atlantic, "Photo Updates From Kilauea: The Lava Meets the Sea," 23 May 2018 The change is attributed to new magma mixing with 1955-era magma in the ground, creating hotter and more fluid flows, scientists said. Caleb Jones And Jennifer Sinco Kelleher, Fox News, "Rural Hawaii communities face various volcano threats," 20 May 2018 Lava flows have sped up as fresher magma mixes with decades-old magma, creating hotter and more fluid flows, scientists said. Caleb Jones, BostonGlobe.com, "Hawaii lava reaches sea, injures man," 20 May 2018 The change is attributed to new magma mixing with 1955-era magma in the ground, creating hotter and more fluid flows, scientists said. CBS News, "Hawaii lava flow ramps up as new magma mixes with old," 20 May 2018 This year feels more fluid and potentially more chaotic than in year's past. Michael Singer, USA TODAY, "2018 NBA draft tracker: Pick-by-pick analysis, grades for each selection," 21 June 2018

Recent Examples on the Web: Noun

Left to its own devices, the heart gives way and the animal suffocates in their own fluids. Ace Ratcliff, SELF, "Pet Euthanasia at Home: 6 Ways to Make Putting Down Your Pet Easier on Them—and You," 25 Oct. 2018 And a priest in Harrisburg abused five sisters in the same family, even collecting samples of their body fluids. Fox News, "Geraldo on Trump's war of words with Omarosa," 15 Aug. 2018 Someone gave me a liter bottle of water and sugar to replace my fluids. Louis Cheslaw, Condé Nast Traveler, "Rupert Thomson Had The Worst Two Days of His Life in the Amazon," 13 July 2018 Daimler said a function in the onboard diagnostics system prevents overdosing of the AdBlue fluid in nonstandard operating conditions, such as the use of biofuels. BostonGlobe.com, "Emissions issues plague Daimler truck engines," 9 July 2018 Fire crews confirmed the fire was out, reporting that the room had an odor of lighter fluid. Jeff Weiner, OrlandoSentinel.com, "Man jailed in domestic violence, arson at extended-stay hotel — 'I’m burning my room up'," 6 Apr. 2018 Last winter, deicing fluid infiltrated some of the antennas and disrupted Wi-Fi service on board. Ally Marotti, chicagotribune.com, "Gogo lays off 55 as it seeks to turn around struggling in-flight Wi-Fi business," 13 July 2018 Hospitals have long used IVs to give fluids to patients for a variety of ailments, from alcohol poisoning to diarrhea. Zahria Rogers, The Courier-Journal, "Concierge IV hydration therapy service seeks to rehydrate Louisville," 12 July 2018 Four required emergency evacuations, three by helicopter: one person with stress fractures in both feet, one who had a serious fall, and one who had a severe stomach bug and couldn’t keep any fluids down. Alex Hutchinson, Outside Online, "Here's What It Takes to Hike the John Muir Trail," 11 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fluid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fluid

Adjective

1603, in the meaning defined at sense 1a

Noun

1661, in the meaning defined above

History and Etymology for fluid

Adjective

French or Latin; French fluide, from Latin fluidus, from fluere to flow; akin to Greek phlyzein to boil over

Noun

see fluid entry 1

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Statistics for fluid

Last Updated

16 Nov 2018

Look-up Popularity

Time Traveler for fluid

The first known use of fluid was in 1603

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More Definitions for fluid

fluid

adjective

English Language Learners Definition of fluid

 (Entry 1 of 2)

: capable of flowing freely like water

—used to describe something that can change easily or that changes often

: having or showing a smooth and easy style

fluid

noun

English Language Learners Definition of fluid (Entry 2 of 2)

: a substance that is able to flow freely : a liquid substance

fluid

adjective
flu·​id | \ˈflü-əd \

Kids Definition of fluid

 (Entry 1 of 2)

1 : capable of flowing like a liquid or gas fluid lava

2 : having a graceful or flowing style or appearance a dancer's fluid movement

Other Words from fluid

fluidly adverb

fluid

noun

Kids Definition of fluid (Entry 2 of 2)

: something that tends to flow and take the shape of its container

fluid

adjective
flu·​id | \ˈflü-əd \

Medical Definition of fluid 

(Entry 1 of 2)

: having particles that easily move and change their relative position without a separation of the mass and that easily yield to pressure : capable of flowing

fluid

noun

Medical Definition of fluid (Entry 2 of 2)

: a substance (as a liquid or gas) tending to flow or conform to the outline of its container specifically : one in the body of an animal or plant — see cerebrospinal fluid, seminal fluid

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Comments on fluid

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