• synonyms


[soo-per-krit-i-kuh l]
  1. extremely critical.
  2. Physics. pertaining to a mass of radioactive material in which the rate of a chain reaction increases with time.
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Origin of supercritical

First recorded in 1600–10; super- + critical
Related formssu·per·crit·i·cal·ly, adverbsu·per·crit·i·cal·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for supercritical

Historical Examples of supercritical

  • The practical person, the wary pedant, and the supercritical will scoff at this, but let it stand.

    Dickens' London

    Francis Miltoun

British Dictionary definitions for supercritical


  1. physics (of a fluid) brought to a temperature and pressure higher than its critical temperature and pressure, so that its physical and chemical properties change
  2. nuclear physics of or containing more than the critical mass
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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