supercritical fluid

https://doi.org/10.1351/goldbook.S06138
The defined state of a compound, mixture or element above its @C01397@ (\(p_{\text{c}}\)) and @C01402@ (\(T_{\text{c}}\)).
Source:
PAC, 1993, 65, 2397. (Nomenclature for supercritical fluid chromatography and extraction (IUPAC Recommendations 1993)) on page 2399 [Terms] [Paper]