What is liquid?

  • (noun): A substance in the fluid state of matter having no fixed shape but a fixed volume.
    See also — Additional definitions below


Liquid is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape. A liquid is made up of tiny vibrating particles of matter, such as atoms and molecules, held together by intramolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Some liquids resist compression, while others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.

Read more about Liquid.

Some articles on liquid:

Examples of Nucleation
... is released from a container of carbonated liquid ... Nucleation in boiling can occur in the bulk liquid if the pressure is reduced so that the liquid becomes superheated with respect to the pressure-dependent boiling point ... Typically, nucleation sites are tiny crevices where free gas-liquid surface is maintained or spots on the heating surface with lower wetting properties ...
Nuclear Fuel - Liquid Fuels
... Liquid fuels are liquids containing dissolved nuclear fuel ... Liquid-fueled reactors generally have large negative feedback mechanisms and therefore are particularly stable designs however the liquid fuel form also has the disadvantage of being easily ...
... Often known simply as "Optimo," the club takes its name from the eponymous Liquid Liquid song and 1983 EP title ... Cut Copy, Franz Ferdinand, The Rapture, Peaches, Isolée, Shitdisco, Chicks on Speed, Liquid Liquid, LCD Soundsystem, Hot Chip, Richie Hawtin, The Long Blondes, The Presets, Voxtrot, TV on the Radio, The ...
Life On Mars - Liquid Water
... missions have focused on another question whether Mars held lakes or oceans of liquid water on its surface in the ancient past ... Rovers of 2004 was not to look for present or past life, but for evidence of liquid water on the surface of Mars in the planet's ancient past ... Liquid water, necessary for Earth life and for metabolism as generally conducted by species on Earth, cannot exist on the surface of Mars under its present low atmospheric pressure and ...
... Globule can refer to Bok globule, dark clouds of dense cosmic dust Drop (liquid), small column of liquid Antibubbles of liquid on top of a surface of liquid ...

More definitions of "liquid":

  • (adj): Smooth and unconstrained in movement.
    Example: "The liquid grace of a ballerina"; "liquid prose"
    Synonyms: flowing, fluent, fluid, smooth
  • (noun): A substance that is liquid at room temperature and pressure.
  • (adj): Changed from a solid to a liquid state.
    Synonyms: melted, liquified
  • (adj): Smooth and flowing in quality; entirely free of harshness.
    Example: "The liquid song of a robin"
  • (adj): Clear and bright.
    Example: "The liquid air of a spring morning"; "eyes shining with a liquid luster"
    Synonyms: limpid
  • (adj): Existing as or having characteristics of a liquid; especially tending to flow.
    Example: "Water and milk and blood are liquid substances"
  • (adj): Yielding; lacking any hint of hardness.
    Example: "The liquid stillness of the night enveloping him"; "the liquid brown eyes of a spaniel"
  • (noun): The state in which a substance exhibits a characteristic readiness to flow with little or no tendency to disperse and relatively high incompressibility.
    Synonyms: liquidness, liquidity
  • (noun): A frictionless non-nasal continuant (especially 'l' and 'r').
  • (adj): In cash or easily convertible to cash.
    Example: "Liquid (or fluid) assets"
    Synonyms: fluid
  • (adj): Filled or brimming with tears.
    Example: "Sorrow made the eyes of many grow liquid"
    Synonyms: swimming, watery

Famous quotes containing the word liquid:

    Telephone poles were matchsticks, put there to be snapped off at a whim. Dogs trotting across the road were suddenly big trucks. Old ladies turned into moving—vans. Everything was too bright, but very funny and made for my delight. And about half a mile from my long liquid breakfast I turned carefully down a side street and parked, and sat beaming happily through the tannic fog for about an hour, remembering how witty we all had been, how handsome and talented ... [ellipsis in original]
    M.F.K. Fisher (1908–1992)

    Taking a good mouthful, I felt as though I had taken liquid fire; the tomato was chile colorado, or red pepper, of the purest kind. It nearly killed me, and I saw Gómez’ eyes twinkle for he saw that his share of supper was increased.
    —For the State of California, U.S. public relief program (1935-1943)

    While the State becomes inflated and hypertrophied in order to obtain a firm enough grip upon individuals, but without succeeding, the latter, without mutual relationships, tumble over one another like so many liquid molecules, encountering no central energy to retain, fix and organize them.
    Emile Durkheim (1858–1917)