Nearby Words

Fluids

[floo-id] Origin

flu·id

[floo-id]
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.

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Fluids is always a great word to know.
So is ninnyhammer. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a fool or simpleton; ninny.

Origin:
1595–1605; < Latin fluidus, equivalent to flu(ere) to flow + -idus -id4

flu·id·al, adjective
flu·id·ly, flu·id·al·ly, adverb
flu·id·ness, noun
non·flu·id, noun
non·flu·id·ly, adverb
EXPAND
un·flu·id, adjective
COLLAPSE

fluid, gas, liquid (see synonym note at liquid).


2. See liquid.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Etymonline
Word Origin & History

fluid
c.1600, from L. fluidus "fluid, flowing," from fluere "to flow" (see fluent). The noun is 1660s, from the adj.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

fluid flu·id (fl&oomacr;'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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American Heritage
Science Dictionary
fluid   (fl'ĭd)  Pronunciation Key 
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.
Cite This Source
American Heritage
Cultural Dictionary

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.
Cite This Source
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