a substance that is fluid at room temperature and pressure
continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas
subject to change; variable
"a fluid situation fraught with uncertainty"; "everything was unstable following the coup"
characteristic of a fluid; capable of flowing and easily changing shape
fluent, fluid, liquid, smooth(adj)
smooth and unconstrained in movement
"a long, smooth stride"; "the fluid motion of a cat"; "the liquid grace of a ballerina"
in cash or easily convertible to cash
"liquid (or fluid) assets"
affording change (especially in social status)
"Britain is not a truly fluid society"; "upwardly mobile"
Any substance which can flow with relative ease, tends to assume the shape of its container, and obeys Bernoulli's principle; a liquid, gas or plasma
Of, or relating to fluid.
In a state of flux; subject to change.
Moving smoothly, or giving the impression of a liquid in motion.
Convertible into cash.
having particles which easily move and change their relative position without a separation of the mass, and which easily yield to pressure; capable of flowing; liquid or gaseous
a fluid substance; a body whose particles move easily among themselves
Origin: [L. fluidus, fr. fluere to flow: cf. F. fluide. See Fluent.]
In physics, a fluid is a substance that continually deforms under an applied shear stress. Fluids are a super set of the phases of matter and include liquids, gases, plasmas and, to some extent, plastic solids. Although the term "fluid" includes both the liquid and gas phases, in common usage, "fluid" is often used as a synonym for "liquid", with no implication that gas could also be present. For example, "brake fluid" is hydraulic oil and will not perform its required function if there is gas in it. This colloquial usage of the term is also common in medicine and in nutrition. Liquids form a free surface while gases do not. The distinction between solids and fluid is not entirely obvious. The distinction is made by evaluating the viscosity of the substance. Silly Putty can be considered to behave like a solid or a fluid, depending on the time period over which it is observed. It is best described as a viscoelastic fluid. There are many examples of substances proving difficult to classify. A particularly interesting one is pitch, as demonstrated in the pitch drop experiment currently running at the University of Queensland.
Chambers 20th Century Dictionary
flōō′id, adj. that flows, as water: liquid or gaseous.—n. a substance in which the particles can move about with greater or less freedom from one part of the body to another.—adjs. Flu′idal; Fluid′ic; Fluid′iform.—vs.t. Fluid′ify, Flu′idise, to make fluid.—ns. Flu′idism; Fluid′ity, Flu′idness, a liquid or gaseous state.—adv. Flu′idly. [Fr.,—L. fluidus, fluid—fluĕre, to flow.]
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British National Corpus
Rank popularity for the word 'fluid' in Nouns Frequency: #1917
The numerical value of fluid in Chaldean Numerology is: 4
The numerical value of fluid in Pythagorean Numerology is: 7
Examples of fluid in a Sentence
Time is so...fluid where I live
It's very slow, very precise, very fluid.
This is such a fluid situation, going hour to hour.
This is a fluid decision. It is not a one-and-done.
But the situation is fluid, unstable and could evolve.
Images & Illustrations of fluid
Popularity rank by frequency of use
Translations for fluid
From our Multilingual Translation Dictionary
- سائل, مائعArabic
- флуид, непостоянен, течен, променлив, течлив, ликвиденBulgarian
- fluidCatalan, Valencian
- kapalina, tekutina, tekutý, plynulý, fluidní, proměnlivýCzech
- omskiftelig, flydende, væskeDanish
- Fluid, Flüssigkeit, fließend, flüssigGerman
- ρευστό, ρευστό σκηνικόGreek
- likvo, likva, fluaEsperanto
- fluidi, nesteFinnish
- siùbhlachScottish Gaelic
- तरल पदार्थHindi
- fluido, liquidoItalian
- 液体, 流体Japanese
- šķidrums, šķidrsLatvian
- flytende, væskeNorwegian
- incasseerbare, vloeiende, vloeistof, incasseerbaar, vloeiend, vloeibaar, vloeibareDutch
- væske, flytandeNorwegian Nynorsk
- płynny, płynowy, ciekły, płynPolish
- fluido, líquidoPortuguese
- ликви́дный, ги́бкий, жи́дкий, пла́вный, жи́дкость, теку́чийRussian
- flytande, vätskaSwedish
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