adjective Date: 1879 having no mass <
a massless particle

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • massless — [mas′lis] adj. having no mass: said of some subatomic particles, as a gluon or a photon …   English World dictionary

  • massless — masslessness, n. /mas lis/, adj. Physics. pertaining to an elementary particle having zero rest mass, as a photon. [1875 80; MASS + LESS] * * * …   Universalium

  • massless — adjective having no mass …   Wiktionary

  • massless — mæslɪs adj. without mass; of or pertaining to subatomic particles having zero mass …   English contemporary dictionary

  • massless — mass·less …   English syllables

  • massless — mass•less [[t]ˈmæs lɪs[/t]] adj. phs pertaining to an elementary particle, as a photon, having zero rest mass • Etymology: 1875–80 mass′less•ness, n …   From formal English to slang

  • massless — …   Useful english dictionary

  • Massless particle — In particle physics, a massless particle is a particle whose invariant mass is zero. Currently, the only known massless particles are gauge bosons: the photon (carrier of electromagnetism) and the gluon (carrier of the strong force). However,… …   Wikipedia

  • Gas in a box — In quantum mechanics, the results of the quantum particle in a box can be used to look at the equilibrium situation for a quantum ideal gas in a box which is a box containing a large number of molecules which do not interact with each other… …   Wikipedia

  • Chirality (physics) — A chiral phenomenon is one that is not identical to its mirror image (see Chirality). The spin of a particle may be used to define a handedness (aka chirality) for that particle. A symmetry transformation between the two is called parity.… …   Wikipedia

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