supercritical

adjective

su·​per·​crit·​i·​cal ˌsü-pər-ˈkri-ti-kəl 

: being or having a temperature above a critical temperature

supercritical fluid

Examples of supercritical in a Sentence

Recent Examples on the Web

The science of supercritical fluids Supercritical CO2 turbines depend on the unique properties of a substance that is neither entirely liquid nor gas. — Aman Kumar, Encyclopedia Britannica, 18 June 2026

The system uses heat pipes to move heat away from the reactor core and into a supercritical carbon dioxide power conversion system that generates electricity. — Aamir Khollam, Interesting Engineering, 11 June 2026

Some shoes now also deploy supercritical EVA to save weight and improve energy return. — Kieran Alger, Wired News, 23 Apr. 2026

It’s often featured in running shoes, including the Active5Ks; the supercritical foam midsole provides a 67% energy return, according to the brand. — Stephanie Osmanski, Better Homes & Gardens, 11 Apr. 2026

Word History

First Known Use

1934, in the meaning defined above

Rhymes for supercritical

• analytical
• apolitical
• diacritical
• hypercritical
• hypocritical
• nonpolitical
• parasitical
• critical
• geopolitical
• levitical
• noncritical
• political