Particle

Particle

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A particle
Particle
A particle is, generally, a small localized object to which can be ascribed physical properties. It may also refer to:In chemistry:* Colloidal particle, part of a one-phase system of two or more components where the particles aren't individually visible.In physics:* Subatomic particle, which may be...

is, generally, a small localized object to which can be ascribed physical properties. It may also refer to:

In chemistry:
  • Colloidal particle
    Colloid
    A colloid is a substance microscopically dispersed evenly throughout another substance.A colloidal system consists of two separate phases: a dispersed phase and a continuous phase . A colloidal system may be solid, liquid, or gaseous.Many familiar substances are colloids, as shown in the chart below...

    , part of a one-phase system of two or more components where the particles aren't individually visible.

In physics:
  • Subatomic particle
    Subatomic particle
    In physics or chemistry, subatomic particles are the smaller particles composing nucleons and atoms. There are two types of subatomic particles: elementary particles, which are not made of other particles, and composite particles...

    , which may be either:
    • Composite particle, a bound state between several elementary particles
    • Elementary particle
      Elementary particle
      In particle physics, an elementary particle or fundamental particle is a particle not known to have substructure; that is, it is not known to be made up of smaller particles. If an elementary particle truly has no substructure, then it is one of the basic building blocks of the universe from which...

      , a particle of which larger particles are composed, also called a fundamental particle
    • List of particles
      • Hypothetical particles


In applied mathematics:
  • Point particle
    Point particle
    A point particle is an idealization of particles heavily used in physics. Its defining feature is that it lacks spatial extension: being zero-dimensional, it does not take up space...

    , otherwise known as a point mass, an idealization of an object with finite mass but of zero size


In other contexts:
  • Grammatical particle
    Grammatical particle
    In grammar, a particle is a function word that does not belong to any of the inflected grammatical word classes . It is a catch-all term for a heterogeneous set of words and terms that lack a precise lexical definition...

    , a function word not assignable to any of the major word classes
  • Nanoparticle
    Nanoparticle
    In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. Particles are further classified according to size : in terms of diameter, coarse particles cover a range between 10,000 and 2,500 nanometers. Fine particles are sized...

    , a small object – sized between 1 and 100 nanometers – that behaves as a whole unit in terms of its transport and properties
  • Particle (band)
    Particle (band)
    Particle is an American jam band formed in Los Angeles in 2000. The original members were Dave Simmons , Steve Molitz , Eric Gould , and Darren Pujalet . Simmons died shortly after the formation of the band due to a sudden illness. Guitarist Charlie Hitchcock joined shortly thereafter...

    , a 2000 jam band from Los Angeles, California
  • Particle (ecology)
    Particle (ecology)
    In marine and freshwater ecology, a particle is a small object. Particles can remain in suspension in the ocean or freshwater, however they eventually settle and accumulate as sediment. Some can enter the atmosphere through wave action where they can act as cloud condensation nuclei...

    , in marine and freshwater ecology, a small object
  • Particle system
    Particle system
    The term particle system refers to a computer graphics technique to simulate certain fuzzy phenomena, which are otherwise very hard to reproduce with conventional rendering techniques...

    , in computer graphics, a technique to simulate certain fuzzy phenomena
  • Particulate matter, in the areas of atmospheric physics and air pollution
  • Self-propelled particle, a concept used in statistical physics to model swarms.

See also

  • Granular material
    Granular material
    A granular material is a conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact . The constituents that compose granular material must be large enough such that they are not subject to thermal motion fluctuations...

  • Part (disambiguation)
  • Particle size (disambiguation)