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critical density

[ krit-i-kuhl den-si-tee ]

noun

, Physics.
  1. the density of a pure element or compound at a critical point:

    If space has positive curvature, the actual density of matter must be larger than the critical density.

critical density

noun

  1. the density of matter that would be required to halt the expansion of the universe
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of critical density1

First recorded in 1885–90

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critical dampingcritical failure

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