liquid

American  

[lik-wid] / ˈlɪk wɪd /

adjective

1. 

   composed of molecules that move freely among themselves but do not tend to separate like those of gases; neither gaseous nor solid.

2. of, relating to, or consisting of liquids.

   a liquid diet.

3. flowing like water.

4. clear, transparent, or bright.

   liquid eyes.

5. (of sounds, tones, etc.) smooth; agreeable; flowing freely.

   the liquid voice of a trained orator.

6. in cash or readily convertible into cash without significant loss of principal.

   liquid assets.

7. Phonetics. characterizing a frictionless speech sound pronounced with only a partial obstruction of the breath stream and whose utterance can be prolonged as that of a vowel, especially l and r.

8. (of movements, gestures, etc.) graceful; smooth; free and unconstricted.

   the ballerina's liquid arabesques.

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noun

• liquids
  plural

1. a liquid substance.

2. Phonetics. either r or l, and sometimes m, n, ng.

liquid British  

/ ˈlɪkwɪd /

noun

1. a substance in a physical state in which it does not resist change of shape but does resist change of size Compare gas solid

2. a substance that is a liquid at room temperature and atmospheric pressure

3. phonetics a frictionless continuant, esp ( l ) or ( r )

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adjective

1. of, concerned with, or being a liquid or having the characteristic state of liquids

   liquid wax

2. shining, transparent, or brilliant

3. flowing, fluent, or smooth

4. (of assets) in the form of money or easily convertible into money

liquid Scientific  

/ lĭk′wĭd /

1. One of four main states of matter, composed of molecules that can move about in a substance but are bound loosely together by intramolecular forces. Unlike a solid, a liquid has no fixed shape, but instead has a characteristic readiness to flow and therefore takes on the shape of any container. Because pressure transmitted at one point is passed on to other points, a liquid usually has a volume that remains constant or changes only slightly under pressure, unlike a gas.

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liquid Cultural  

1. A phase of matter in which atoms or molecules can move freely while remaining in contact with one another. A liquid takes the shape of its container. (Compare gas and solid.)

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Synonym Usage

Liquid, fluid agree in referring to matter that is not solid. Liquid commonly refers to substances, as water, oil, alcohol, and the like, that are neither solids nor gases: Water ceases to be a liquid when it is frozen or turned to steam. Fluid is applied to anything that flows, whether liquid or gaseous: Pipes can carry fluids from place to place.

Other Word Forms

Derived Forms

• liquidness
  noun
• nonliquid
  adjective
• unliquid
  adjective
• liquidly
  adverb
• nonliquidly
  adverb

Inflected Forms

Nouns

• liquids
  plural

Etymology

Origin of liquid

First recorded in 1350–1400; Middle English liquyd, from Latin liquidus, equivalent to liqu(ēre) “to be liquid” + -idus -id ⁴

Explanation

In everyday use, liquid is the opposite of solid––water at room temperature is a liquid: Heat it to boiling, it turns to a gas. Chill it below freezing, it turns to ice. Liquid describes a state in which a compound such as water flows. Juice is a liquid. Milk is a liquid. Your swimming pool is full of liquid. When assets are liquid, that means they can be liquidated easily, i.e., sold for cash. Stocks and bonds are liquid assets. Real estate, which can take a long time to sell, is considered illiquid.

Example Sentences

See Examples For:

liquid liquids

Liquefaction plants cool natural gas down to around minus 162 degrees Celsius, which shrinks its volume by around 600 times and turns it into a liquid.

From The Wall Street Journal ● Sep. 29, 2026

It can be a liquid or a crystal form too.

From BBC ● Sep. 22, 2026

But the new facilities increasingly use closed-loop liquid cooling, which continually recirculates coolant instead.

From MarketWatch ● Sep. 18, 2026

Using technologies such as liquid chromatography and mass spectrometry, the researchers carried out a broad analysis of the fats present in japonica rice.

From Science Daily ● Sep. 17, 2026

There was, however, a long yellow rectangle that was rather tasty, and an even more delicious white liquid inside a carton.

From "Klawde: Evil Alien Warlord Cat" by Johnny Marciano and Emily Chenoweth

Surrounding it are eight microscopic channels that can transport liquids.

From Science Daily ● Sep. 21, 2026

Analysts at data-platform company Kpler said Friday that no crude liquids from Saudi Arabia had transited Bab al-Mandeb since Sunday.

From MarketWatch ● Sep. 11, 2026

The lab said on Tuesday that one of its internal models has solved the Navier-Stokes existence and smoothness problem, a fundamental question about the rules that describe how liquids and gases move.

From The Wall Street Journal ● Sep. 8, 2026

So far, the fractons predicted in quantum spin liquids have not been directly observed in experiments.

From Science Daily ● Sep. 7, 2026

Two shelves holding tiny vials of colorful liquids slide forward.

From "The Manifestor Prophecy" by Angie Thomas