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Meaning of ultrarelativistic | Babel Free

Adjective CEFR C2

Definitions

Moving at a speed very close to the speed of light.

CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
See all C2 English words →

See also

ultrarelaxing ultrareliable ultrareligious ultrarepublican ultraresilient ultrarespectable

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