atomic clock

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)  A radio clock.

Usage notes

 * The U.S., which operates the time broadcast, advises that referring to a clock not containing its own atomic oscillator as an "atomic clock" is technically incorrect and should be avoided.

Translations

 * Afrikaans: atoomhorlosie
 * Arabic: سَاعَة ذُرِّيَّة
 * Chinese:
 * Cantonese: 原子鐘
 * Mandarin:
 * Czech: atomové hodiny
 * Danish: atomur
 * Dutch:
 * Esperanto: atoma horloĝo
 * Estonian:
 * Finnish:
 * French:
 * Georgian: ატომური საათი
 * German:
 * Hungarian:
 * Irish: clog adamhach
 * Japanese: 原子時計
 * Korean: 원자 시계
 * Latvian: atompulkstenis
 * Macedonian: атомски часовник
 * Norwegian:
 * Bokmål: atomklokke, atomur
 * Nynorsk: atomur
 * Polish: zegar atomowy
 * Portuguese: relógio atómico ,
 * Russian:
 * Spanish: reloj atómico
 * Swedish:
 * Thai: นาฬิกาอะตอม
 * Turkish: atom saati