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critical density

noun, Physics.
the density of a pure element or compound at a critical point. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for critical density
  • If the universe was below that critical density, it would continue expanding forever.
  • Quorum sensing enables bacteria to change their behaviour once they reach a critical density.
  • Also when gravity reaches critical density, it ignites and releases energy as light.
  • It wasn't enough to say that the universe was accelerating, only that there wasn't enough matter to provide the critical density.
British Dictionary definitions for critical density

critical density

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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