Lexic.us

Definition of Dark matter

1. Noun. (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.

Definition of Dark matter

1. Noun. (astronomy) Particles of matter that cannot be detected by their radiation but whose presence is inferred from gravitational effects. ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Dark Matter

Literary usage of Dark matter

Below you will find example usage of this term as found in modern and/or classical literature:

1. Revealing the Hidden Nature of Space And Time: Charting the Course for by National Research Council (U.S.) (2006)
"This was the beginning of the dark matter problem. To account for the unexpectedly rapid motion of the galaxies—and, as later became clear, the rapid motion ..."

2. Priorities in Space Science Enabled by Nuclear Power And Propulsion by Ssb (2006)
"The principal questions of interest identified were as follows: • What is dark matter? • What is the nature of dark energy? • How did the universe begin? ..."

3. Monthly Notices of the Royal Astronomical Society by Royal Astronomical Society (1907)
""shoulder" had lost something of its white appearance, though it was not as yet possible to feel sure of the existence there of the stream of dark matter. ..."

4. First Workshop on Grand Unification: New England Center, University of New by Paul H. Frampton, Sheldon L. Glashow, Asim Yildiz (1980)
"The parameters characterizing the dark matter are observed to be roughly as ... The radius and mass of the dark matter are about five or ten times those of ..."

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