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dark matter

noun

Definition of DARK MATTER

:  nonluminous matter not yet directly detected by astronomers that is hypothesized to exist to account for various observed gravitational effects
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First Known Use of DARK MATTER

1982

Rhymes with DARK MATTER

back matter, backscatter, bespatter, flat-hatter, front matter, gray matter, no matter, standpatter, the matter, white matter, wildcatter

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2 ENTRIES FOUND:
  1. dark matter
  2. cold dark matter
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