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329 results for: fluid

Dictionary Entries (18 more entries. View all »)
Dictionary.com Unabridged (v 1.1)Cite This Source
flu·id    Audio Help   [floo-id] Pronunciation Key
–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; < L fluidus, equiv. to flu(ere) to flow + -idus -id4]

—Related forms
flu·id·al, adjective
flu·id·ly, flu·id·al·ly, adverb
flu·id·ness, noun

—Synonyms 2. See liquid.
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Thesaurus Entries (1 more entry. View all »)
  Synonym Collection v1.1Cite This Source
Main Entry:  fluid
Part of Speech:  noun
Synonyms:  adaptable, changeable, flexible, flowing, fluent, graceful, juice, liquid, liquor, milk, pliable, solution, unstable, water, watery, floating, gaseous, ink, rasa, runny, shifting
Source:  Synonym Collection v1.1
Copyright © 2008 by Lexico Publishing Group, LLC.
  Roget's II: The New ThesaurusCite This Source
Main Entry:  changeable
Part of Speech:  adjective
Definition:  Capable of or liable to change.
Synonyms:  alterable, inconstant, mutable, uncertain, unsettled, unstable, unsteady, variable, variant
Source:  Roget's II: The New Thesaurus, Third Edition
by the Editors of the American Heritage® Dictionary.
Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company.
Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
  Roget's II: The New ThesaurusCite This Source
Main Entry:  mobile
Part of Speech:  adjective
Definition:  Changing easily, as in expression.
Synonyms:  changeable, plastic
Source:  Roget's II: The New Thesaurus, Third Edition
by the Editors of the American Heritage® Dictionary.
Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company.
Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Encyclopedia Articles (305 more entries. View all »)
Columbia Electronic EncyclopediaCite This Source


fluid, any substance that is able to flow. Of the four states of matter, only a solid is not a fluid, since it has a definite shape that is not readily changed. Any liquid, gas, or plasma is classed as a fluid. 
The Columbia Electronic Encyclopedia Copyright © 2004, Columbia University Press.
Licensed from Columbia University Press




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