supercritical

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supercritical

[¦sü·pər′krid·ə·kəl]
(nucleonics)
Having an effective multiplication constant greater than 1, so that the rate of reaction rises rapidly in a nuclear reactor.
(thermodynamics)
Property of a gas which is above its critical pressure and temperature.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Moreover, the supercritically dried aerocrystals showed that they could generate light more efficiently than similar crystals dried by evaporation, the researchers say,
The subsequent gels are then supercritically dried to form polyimide aerogels.
Although our experiments showed that the densities of supercritically dried MR-FA aerogels can be decreased by raising W/MR ratio above 45 (Fig.
BET surface area measurements were carried out using the supercritically dried gels and an ambient dried aerogel.
Xenon, ethane and carbon dioxide can be used supercritically to extract product selectively.