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Meaning of caesium clock | Babel Free

Noun CEFR B2

Definitions

A type of highly accurate atomic clock that is regulated by a resonance frequency of caesium atoms (the same frequency, 9,192,631,770 Hz, on which the precise scientific definition of the second is based).

CEFR level

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

caesium fluoride caesium hydroxide caesium iodide caesium nitrate caesium-137 caesura

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