Definitions for fluid
ˈflu ɪdflu·id

Princeton's WordNet(4.75 / 4 votes)Rate this definition:

1. fluid(noun)

   a substance that is fluid at room temperature and pressure

2. fluid(adj)

   continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas

3. fluid, unstable(adj)

   subject to change; variable

   "a fluid situation fraught with uncertainty"; "everything was unstable following the coup"

4. fluid, runny(adj)

   characteristic of a fluid; capable of flowing and easily changing shape

5. 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"

6. fluid, liquid(adj)

   in cash or easily convertible to cash

   "liquid (or fluid) assets"

7. fluid, mobile(adj)

   affording change (especially in social status)

   "Britain is not a truly fluid society"; "upwardly mobile"

Wiktionary(0.00 / 0 votes)Rate this definition:

1. fluid(Noun)

   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

2. fluid(Adjective)

   Of, or relating to fluid.

3. fluid(Adjective)

   In a state of flux; subject to change.

4. fluid(Adjective)

   Moving smoothly, or giving the impression of a liquid in motion.

5. fluid(Adjective)

   Convertible into cash.

Wikipedia(2.00 / 1 vote)Rate this definition:

1. Fluid

   In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress, or external force. Fluids are a phase of matter and include liquids, gases and plasmas. They are substances with zero shear modulus, or, in simpler terms, substances which cannot resist any shear force applied to them. 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. This colloquial usage of the term is also common in medicine and in nutrition ("take plenty of fluids"). Liquids form a free surface (that is, a surface not created by the container) while gases do not. Viscoelastic fluids like Silly Putty appear to behave similar to a solid when a sudden force is applied. Also substances with a very high viscosity such as pitch appear to behave like a solid (see pitch drop experiment).

Webster Dictionary(5.00 / 1 vote)Rate this definition:

1. Fluid(adj)

   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

   Etymology: [L. fluidus, fr. fluere to flow: cf. F. fluide. See Fluent.]

2. Fluid(noun)

   a fluid substance; a body whose particles move easily among themselves

   Etymology: [L. fluidus, fr. fluere to flow: cf. F. fluide. See Fluent.]

Freebase(2.00 / 1 vote)Rate this definition:

1. Fluid

   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(3.00 / 1 vote)Rate this definition:

1. Fluid

   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.]

CrunchBase(0.00 / 0 votes)Rate this definition:

1. Fluid

   Fluid Inc. " the digital shopping innovator, designs and builds digital shopping experiences that brings brands to life, making the shopping experience fun, vivid, intuitive and social. In addition to design and development services, Fluid™s offering includes the Fluid Retail interactive merchandising suite which enables engaging customer experiences that drive conversion, customer satisfaction, and brand loyalty. Fluid™s customers range from mass-market retailers to luxury goods manufacturers, and include top brands such as: Sears, Benefit Cosmetics, Elie Tahari, Diapers.com, Nine West, Reebok, The North Face, and Vans. For more information, visit www.fluid.com, and follow us on Twitter @Fluid or Facebook FluidInc.

Editors Contribution(0.00 / 0 votes)Rate this definition:

1. fluid

   A specific form of matter.

   Blood in the human body is a form of fluid

   Submitted by MaryC on June 22, 2020  

2. fluid

   Having a consistency that moves easily.

   The milk was fluid.

   Submitted by MaryC on December 22, 2019  

3. fluid

   Matter in a liquid form.

   We can buy lighter fluid or other oils in a fluid form.

   Submitted by MaryC on December 22, 2019  

British National Corpus

1. Nouns Frequency

   Rank popularity for the word 'fluid' in Nouns Frequency: #1917

How to pronounce fluid?

1. 

   Alex

   US English

   

   Daniel

   British

   

   Karen

   Australian

   

   Veena

   Indian

How to say fluid in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of fluid in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of fluid in Pythagorean Numerology is: 7

Examples of fluid in a Sentence

1. Liz Cooper:

   She asked if I was on my period because during menstruation it’s common to feel lumps or fluid in your breast, two weeks later it was still there, so I made an appointment with my doctor, got a prescription for an ultrasound, had it done and they knew right away at the ultrasound.

2. Vouyiouklis Kellis:

   Having irregular periods can be a first sign, or even bowel movement changes or constipation. Issues with performance and muscle recovery could become problematic, untreated, if it gets severe and the body's unable to produce any thyroid hormone, everything starts to slow down. You can have memory issues, slow speech, slow movement -- you can even develop fluid around the heart and fluid in the lungs. The heart rate can also slow down.

3. John Urbanchuk:

   I was appalled when I looked at the numbers, fluid milk consumption per capita is down by 9.7 percent in the last five years, ice cream consumption is down 3.3 percent. People are just not consuming milk, and its putting the dairy industry in a bad place.

4. Melissa Majumdar:

   All fluids with the exception of alcohol fall under that [ fluid ] bucket.

5. Margaret Fuller:

   Male and female represent the two sides of the great radical dualism. But in fact they are perpetually passing into one another. Fluid hardens to solid, solid rushes to fluid. There is no wholly masculine man, no purely feminine woman.

Images & Illustrations of fluid

Popularity rank by frequency of use