Skip to main content
fluid

fluid

356 2.3
A substance like a liquid or gas that flows and takes the shape of its container
  • noun
  • /ˈfluːɪd/
: fluido
  • Patients with chronic heart failure and fluid retention gain weight. True or False?
  • body fluids
  • fluid flow
  • water-based fluids

I think I mean, yeah, Bodily fluids, Breast milk, yeah.

Autoplay Next

Examples

  • The equipment would recycle water-based fluids on site to reduce transportation and labor costs.

    Academic text (2011)
  • We just pop it in, take a little amniotic fluid, test it for any abnormalities, and also the DNA sample that you require.

  • How much fluid do we have in each?

  • No fluid in the ears.

  • Water is just a fluid that flows in the way it flows.

  • Hey, Ed, do you know how many different fluids the human body has?

  • This frees air and fluid so that you can breathe more easily.

  • No, I can't see any fluid coming up here whatsoever.

  • The doctor explained that the body requires a balance of different fluids to function properly.

  • When camping, it's important to carry enough fluid to stay hydrated throughout the day.

Antonyms

solid
  • Specialized
23 1.0

A firm form of matter that keeps its shape, not liquid

Compounds

bodily fluid
  • Specialized
20 3.3

A liquid the body makes, like blood, urine, or saliva

amniotic fluid
  • Specialized
11 4.2

Clear slightly yellow liquid that surrounds and protects a developing baby in the womb

body fluid
  • Specialized
10 2.8

A liquid from the body of people and animals, for example blood, saliva or urine

spinal fluid
  • Specialized
8 4.1

A clear, colorless liquid that surrounds and protects the brain and the nerves inside the spine

4 6.8

A man's thick white fluid that comes out during orgasm and contains sperm

3 3.8

Smooth, graceful movement that looks continuous without sudden stops

cerebrospinal fluid
  • Specialized
2 5.3

A clear liquid that surrounds and protects the brain and spinal cord

Smooth, graceful motions of the body that look easy

synovial fluid
  • Specialized
1 4.1

A thick slippery liquid inside joints that helps them move smoothly

1 5.5

A clear liquid around the brain that protects it and helps it work

1 3.2

A unit for measuring small amounts of liquid, about 28 millilitres in Britain and about 30 millilitres in America

drilling fluid
  • Specialized
1 5.7

A mix of water, clay, and chemicals that cools and lubricates the drill, removes cuttings, and stabilizes the hole walls

1 2.8

A US unit for measuring small amounts of liquid equal to about 30 millilitres

fluid mechanics
  • Specialized
1 4.7

The study of how liquids and gases move and the forces that act on them

digestive fluid
  • Specialized
1 3.8

A liquid the body makes that helps break down food

interstitial fluid
  • Specialized
1 7.0

Fluid between the body's cells that carries nutrients and oxygen and removes waste

Moving smoothly and elegantly without sudden or awkward movements

extracellular fluid
  • Specialized
1 4.9

Fluid outside body cells, like blood plasma and fluid between cells, that carries salts and proteins

fluid drive
  • Archaic
1 7.8

A device that uses fluid to connect an engine to the drive shaft smoothly

intracellular fluid
  • Specialized
1 5.7

The liquid inside a cell that contains dissolved substances the cell needs

A way of thinking that easily changes to fit new situations

6.0

Flow of the clear fluid in and around the brain

amnionic fluid
  • Specialized
5.8

The clear watery fluid that surrounds and protects a baby in the womb

fluid dram
  • Archaic
9.9

A small old liquid measure used for medicine, about 3.6 millilitres

fluid flywheel
  • Archaic
8.4

A device that uses fluid to send engine power to the transmission smoothly

How Viscous

paste
70 1.0
syrup
180 1.0
oil
∞ 1.0
fluid
356 2.3
water
∞ 1.0
gas
648 1.0

Surface Forms

fluid singular
fluids plural

Etymology

The word fluid comes from the Latin fluere, meaning 'to flow', like the everyday word flow. As a noun, a fluid is literally 'something that flows', such as water or air, because it takes the shape of its container.