atomic clock

Fetched 2026-10-26 (cache).

Synonyms: atomic clocks

Antonyms: atomic clocks

Related words from Datamuse; suggestions, not definitions.

Noun

1. An extremely accurate reference [[clock]] whose operation is based on an atomic process, typically the frequency of [[electromagnetic radiation]] associated with a specified energy-level transition in an element such as [[cesium]].
2. {{lb|en|proscribed}} A [[radio clock]].

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