ALL meanings of atomic clock
a·tom·ic clock
A a - noun atomic clock an extremely accurate clock in which an electrical oscillator is controlled by the natural vibrations of an atomic or molecular system such as caesium or ammonia 3
- noun atomic clock an extremely accurate clock whose precision depends upon the very constant frequency at which atoms (or molecules) of certain substances, as of cesium, rubidium, or ammonia, absorb or emit electromagnetic radiation 3
- noun atomic clock an extremely accurate electronic clock regulated by the resonance frequency of atoms or molecules of certain substances, as cesium. 1
- noun atomic clock highly accurate electronic clock 1
- noun atomic clock 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. 0
- noun atomic clock (proscribed) A radio clock. 0