elementary particle

(redirected from Elementary entity)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to Elementary entity: periodic table, elementary particle, Molar mass

elementary particle

n.
Any subatomic particle, such as one of the fundamental fermions or gauge bosons, that may be a component of other particles but is not made of components itself. Also called fundamental particle.

elementary particle

n
(General Physics) any of several entities, such as electrons, neutrons, or protons, that are less complex than atoms and are regarded as the constituents of all matter. Also called: fundamental particle

el′emen′tary par′ticle


n.
any of the fundamental units of matter or radiation, including such particles or quanta as the leptons, the hadrons, the photon, and the graviton.
[1930–35]

el·e·men·ta·ry particle

(ĕl′ə-mĕn′tə-rē)
Any of the smallest known units of matter, such as quarks and neutrinos. Elementary particles are not made up of smaller units.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.elementary particle - (physics) a particle that is less complex than an atom; regarded as constituents of all matter
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
antilepton - the antiparticle of a lepton
antiparticle - a particle that has the same mass as another particle but has opposite values for its other properties; interaction of a particle and its antiparticle results in annihilation and the production of radiant energy
antiquark - the antiparticle of a quark
hadron - any elementary particle that interacts strongly with other particles
lepton - an elementary particle that participates in weak interactions; has a baryon number of 0
subatomic particle, particle - a body having finite mass and internal structure but negligible dimensions
quark - (physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3; "quarks have not been observed directly but theoretical predictions based on their existence have been confirmed experimentally"
strange particle - an elementary particle with non-zero strangeness
cosmic string, string - (cosmology) a hypothetical one-dimensional subatomic particle having a concentration of energy and the dynamic properties of a flexible loop
weakly interacting massive particle, WIMP - a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe
atom - (physics and chemistry) the smallest component of an element having the chemical properties of the element
Translations
alkeishiukkanen
particule élémentaire
cząstka elementarna
References in periodicals archive ?
We start our description of the clustering concepts by restating Chen's definition of a simple or elementary entity as something in the real world that is of interest to an enterprise.
Henceforth we will use the term entity to imply elementary entity.

Full browser ?