Word:

dark matter

Noun1.dark matter - (cosmology) a hypothetical form of matter that is believed to make up 90 percent of the matter in the universe; it is invisible (does not absorb or emit light) and does not collide with atomic particles but exerts gravitational force
cosmogeny, cosmogony, cosmology, matter, substance, weakly interacting massive particle, WIMP
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Darius III
Darius Milhaud
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Dark
dark adaptation
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dark blue
dark bread
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dark comdey
dark field illumination
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dark ground illumination
dark horse
Dark house
dark lantern
-- dark matter --
dark meat
dark red
Dark sentence
dark-blue
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dark-eyed junco
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dark-side hacker
dark-skinned
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darkened
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Darkening
darkey
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