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 ?
Research co-lead author Professor Baojiu Li, of Durham University's Institute for Computational Cosmology, said: "In General Relativity, scientists account for the accelerated expansion of the universe by introducing a mysterious form of matter called dark energy -- the simplest form of which may be a cosmological constant, whose density is a constant in space and time.
Acreage shareholders will receive a significant upfront cash payment of approximately $2.51-$2.63 per Subordinate Voting Share and are expected to benefit from accelerated expansion, improved scale, and a stronger market position in the U.S., powered by the IP and brand rights of the world's leading cannabis company.
In line with its accelerated expansion, the company said it has committed to grow to 150 stores in the USA and 100 stores in Canada in five years.
The USD 25 million investment has been approved by a Cabinet-appointed procurement committee, Minister Ratnayaka tweeted yesterday.This is the first step in a rapid, accelerated expansion program to cater to the growing demand from our customers.
A robust and accelerated expansion of business activity was at the heart of the latest upturn in operating conditions.
The problem is, we don't know what's driving this accelerated expansion.
Following a USD 12m funding round just six months ago, NYMBUS is well-positioned to continue its accelerated expansion plans.
The accelerated expansion of the Beer Kitchen chain is part of a wider roll out, across the UK and abroad, using the PS2.5m raised last month.
Aldi is in the midst of an accelerated expansion plan as it strives to have close to 2,000 stores by 2018.
He covers Planck, Einstein, and Mach; the origins of quantum mechanics; indeterminacy versus uncertainty; the universal constants; Planck's units and Heisenberg-Lemaitre units; implications of a finite universe; cosmic zero-point energy; rigorous solutions of Einstein's cosmological equation; the evidence for dark matter, dark energy, and accelerated expansion; and physics and philosophy.
Washington, Mar 27 ( ANI ): Cosmologists believe that some three quarters of the universe are made up of a mysterious dark energy which would explain its accelerated expansion.
Leveraging the Investors Hub template for the new business, ADVFN eyes accelerated expansion in Asia's fast growing markets, the CEO noted.

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