Supercritical may refer to:

* Critical mass, the smallest amount of fissile material needed for a sustained nuclear chain reaction
* Critical temperature, Tc, the temperature above which distinct liquid and gas phases do not exist
* Supercritical fluid, a substance at a temperature and pressure above its thermodynamic critical point
* Supercritical carbon dioxide, same as above, applied to carbon dioxide
* Supercritical fluid chromatography, high performance liquid chromatography (HPLC), using supercritical carbon dioxide as the mobile phase
* Supercritical airfoil, an airfoil designed to delay the onset of wave drag in the transonic speed range
* Supercritical drying, the process to remove liquid in a precisely controlled way, similar to freeze drying
* Supercritical water reactor (SCWR), a Generation IV nuclear reactor concept that uses supercritical water as the working fluid
* Supercritical water oxidation or SCWO, a process that occurs in water at temperatures and pressures above a mixture's thermodynamic critical point
* Supercritical flow, when the flow velocity is larger than the wave velocity
* Supercritical steam generators, a steam generator operating above the critical point of water, hence having no water - steam separation
* Hopf bifurcation, a local bifurcation ; when the first Lyapunov coefficient is negative, the bifurcation is called supercritical
* Pitchfork bifurcation, similar to the case of a Hopf bifurcation

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Look at other dictionaries:

  • supercritical — [so͞o΄pər krit′i kəl] adj. 1. Chem. designating or of a fluid at a temperature greater than its critical temperature 2. Nuclear Physics designating or of a highly unstable mass of fissionable material in which the total number of free neutrons… …   English World dictionary

  • supercritical — adjective Date: 1934 being or having a temperature above a critical temperature < supercritical fluid > …   New Collegiate Dictionary

  • supercritical — supercritically, adv. supercriticalness, n. /sooh peuhr krit i keuhl/, adj. 1. extremely critical. 2. Physics. pertaining to a mass of radioactive material in which the rate of a chain reaction increases with time. [1600 10; SUPER + CRITICAL] * * …   Universalium

  • supercritical — adjective a) (of a gas) Above its critical temperature and critical pressure b) Above the speed of sound …   Wiktionary

  • supercritical — adjective Physics greater than or above a critical threshold such as critical mass or temperature …   English new terms dictionary

  • supercritical — su·per·critical …   English syllables

  • supercritical — /supəˈkrɪtɪkəl/ (say soohpuh kritikuhl) adjective denoting or relating to a nuclear reaction or a nuclear reactor in which a chain reaction is self sustaining. Compare subcritical …   Australian-English dictionary

  • supercritical — adj. Physics of more than critical mass etc …   Useful english dictionary

  • Supercritical fluid extraction — (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids as the extracting solvent. Extraction is usually from a solid matrix, but can also be from liquids. SFE can be used as a sample …   Wikipedia

  • Supercritical water oxidation — or SCWO is a process that occurs in water at temperatures and pressures above a mixture s thermodynamic critical point. Under these conditions water becomes a fluid with unique properties that can be used to advantage in the destruction of… …   Wikipedia

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