ultracold

English

Etymology

From ultra- +‎ cold.

Adjective

ultracold (comparative more ultracold, superlative most ultracold)

1. (physics) Of a temperature close to absolute zero, especially one at which quantum-mechanical properties are observed.
2. (informal) Extremely cold; of utmost coldness.

Translations

close to zero Kelvin

• French: ^{(please verify)} ultrafroid
• German: ultrakalt