hydrogen maser atomic clock

noun

An atomic clock which uses the 1.4 GHz transition in a hydrogen atom to measure time to within 0.45 nanosecond over a span of twelve hours.

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Meanings

nounhydrogen maser atomic clock (plural hydrogen maser atomic clocks)

plural hydrogen maser atomic clocks

  1. An atomic clock which uses the 1.4 GHz transition in a hydrogen atom to measure time to within 0.45 nanosecond over a span of twelve hours.
Cite this entry
APA

hydrogen maser atomic clock. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/hydrogen%20maser%20atomic%20clock

MLA

“hydrogen maser atomic clock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydrogen%20maser%20atomic%20clock. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “hydrogen maser atomic clock,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/hydrogen%20maser%20atomic%20clock.

Source: hydrogen maser atomic clock on Wiktionary, CC BY-SA 4.0.