caesium clock

1. 1.

   an atomic clock based on the energy difference between two states of the caesium nucleus in a magnetic field

   Broaderatomic clock

Questions about caesium clock

What does caesium clock mean?

caesium clock means "an atomic clock based on the energy difference between two states of the caesium nucleus in a magnetic field".

Is caesium clock a common word?

caesium clock is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.