dark matter

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dark matter

n.
Matter that emits little or no detectable radiation of its own, postulated to account for observed gravitational forces that affect astronomical objects but have no observable sources. Dark matter is thought to be part of the missing mass.

dark matter

n
(Astronomy) astronomy matter known to make up perhaps 90% of the mass of the universe, but not detectable by its absorption or emission of electromagnetic radiation

dark′ mat`ter


n.
a hypothetical form of matter invisible to electromagnetic radiation, postulated to account for gravitational forces observed in the universe.
[1920–25]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dark matter - (cosmology) a hypothetical form of matter that is believed to make up 90 percent of the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force
matter - that which has mass and occupies space; "physicists study both the nature of matter and the forces which govern it"
cosmogeny, cosmogony, cosmology - the branch of astrophysics that studies the origin and evolution and structure of the universe
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
Translations

dark matter

n (Astron) → dunkle Materie, Dunkelmaterie f
References in periodicals archive ?
Iran has recently accelerated expansion of ties and cooperation with friendly countries, including Georgia, and observers believe that the good achievements gained in area of their cooperation should be deemed as a result of the efforts made by the Iranian and Georgian officials.
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Wal-Mart had originally planned to pilot the program in Florida and roll it out to additional states sometime next year, but accelerated expansion due to consumer demand.
Julian Graves has accelerated expansion plans now the dust has settled after its acquisition by Baugur 18 months ago.
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In addition to his financial responsibilities, he oversees the firm's training program that was developed to support HMAC's objectives for accelerated expansion.

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