supercritical

[ soo-per-krit-i-kuh l ]
/ ˌsu pərˈkrɪt ɪ kəl /

adjective

extremely critical.
Physics. pertaining to a mass of radioactive material in which the rate of a chain reaction increases with time.

Origin of supercritical

First recorded in 1600–10; super- + critical

OTHER WORDS FROM supercritical

su·per·crit·i·cal·ly, adverb su·per·crit·i·cal·ness, noun

Example sentences from the Web for 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

supercritical
/ (ˌsuːpəˈkrɪtɪkəl) /

adjective

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
nuclear physics of or containing more than the critical mass