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subcritical

[ suhb-krit-i-kuhl ]

adjective

  1. Physics. pertaining to a state, value, or quantity that is less than critical, especially to a mass of radioactive material.
  2. being of less than critical importance.

subcritical

/ sʌbˈkrɪtɪkəl /

adjective

  1. physics (of a nuclear reaction, power station, etc) having or involving a chain reaction that is not self-sustaining; not yet critical
“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 subcritical1

First recorded in 1940–45; sub- + critical

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subcoversubcrustal

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