Definition of fluid
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 openings — Technical Surveyb : 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 programb : liquid 4 fluid assets
fluidly
adverbfluidness
nounIndulge Your Inner Word Nerd
Examples of fluid in a Sentence
a substance in a fluid state
warm the jam until it is fluid, then spread it over the cake
Origin and Etymology of fluid
French or Latin; French fluide, from Latin fluidus, from fluere to flow; akin to Greek phlyzein to boil over
First Known Use: 1603
fluid
Definition of fluid
: a substance (such as a liquid or gas) tending to flow or conform to the outline of its container
Examples of fluid in a Sentence
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
Origin and Etymology of fluid
see 1fluid
First Known Use: 1661
FLUID Defined for English Language Learners
fluid
playDefinition of fluid for English Language Learners
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: capable of flowing freely like water
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—used to describe something that can change easily or that changes often
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: having or showing a smooth and easy style
fluid
Definition of fluid for English Language Learners
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: a substance that is able to flow freely : a liquid substance
FLUID Defined for Kids
Definition of fluid for Students
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
fluidly
adverbDefinition of fluid for Students
: something that tends to flow and take the shape of its container
Word Root of fluid
The Latin word fluere, meaning “to flow,” gives us the root flu. Words from the Latin fluere have something to do with flowing. A fluid is a substance that flows and is usually a liquid. When someone is fluent in a language the words flow out of her or him. Anything superfluous, or extra, has flowed forth beyond what is necessary.
Medical Dictionary
Medical Definition of fluid
: 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
Medical Definition of fluid
: 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
Learn More about fluid
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Thesaurus: All synonyms and antonyms for fluid Spanish Central: Translation of fluid Nglish: Translation of fluid for Spanish speakers Britannica English: Translation of fluid for Arabic speakers Britannica.com: Encyclopedia article about fluid
Seen and Heard
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