caesium clock

Fetched 2026-10-26 (cache).

Synonyms: cesium clock

Antonyms: cesium clock

Related words from Datamuse; suggestions, not definitions.

Noun

1. 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).

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.