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Meaning of ultracold | Babel Free

Adjective CEFR B2

Definitions

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

Equivalents

Deutsch ultrakalt

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

ultracolossal ultracommercial ultracompact ultracompetent ultracompetitive ultracomplex