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fluid

[floo-id] /ˈflu ɪd/
noun
1.
a substance, as a liquid or gas, that is capable of flowing and that changes its shape at a steady rate when acted upon by a force tending to change its shape.
adjective
2.
pertaining to a substance that easily changes its shape; capable of flowing.
3.
consisting of or pertaining to fluids.
4.
changing readily; shifting; not fixed, stable, or rigid:
fluid movements.
5.
convertible into cash:
fluid assets.
Origin
1595-1605
1595-1605; < Latin fluidus, equivalent to flu(ere) to flow + -idus -id4
Related forms
fluidal, adjective
fluidly, fluidally, adverb
fluidness, noun
nonfluid, noun
nonfluidly, adverb
unfluid, adjective
Can be confused
fluid, gas, liquid (see synonym study at liquid)
Synonyms
2. See liquid.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for flu idly

fluid

/ˈfluːɪd/
noun
1.
a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stress
adjective
2.
capable of flowing and easily changing shape
3.
of, concerned with, or using a fluid or fluids
4.
constantly changing or apt to change
5.
smooth in shape or movement; flowing
Derived Forms
fluidal, adjective
fluidness, noun
fluidly, fluidally, adverb
Word Origin
C15: from Latin fluidus, from fluere to flow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for flu idly

fluid

adj.

early 15c., from Middle French fluide (14c.) and directly from Latin fluidus "fluid, flowing, moist," from fluere "to flow" (see fluent). Figurative use from 1640s. Related: Fluidly.

n.

1660s, from fluid (adj.).

Online Etymology Dictionary, © 2010 Douglas Harper
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flu idly in Medicine

fluid flu·id (flōō'ĭd)
n.
An amorphous substance whose molecules move freely past one another; a liquid or gas. adj.
Of or characteristic of a fluid.


flu·id'i·ty (-ĭd'ĭ-tē) or flu'id·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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flu idly in Science
fluid
  (fl'ĭd)   
A state of matter, such as liquid or gas, in which the component particles (generally molecules) can move past one another. Fluids flow easily and conform to the shape of their containers. See also state of matter, viscosity.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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flu idly in Culture

fluid definition


In physics, a substance that flows — usually a liquid or a gas.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang definitions & phrases for flu idly

fluid

Related Terms

embalming fluid


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Word Value for flu

6
8
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