atomic clock An extremely precise clock whose rate is controlled by the vibration of particular atoms or molecules whose frequency does not change. The standard kind of atomic clock, which is based on the vibrations of cesium atoms, gains or loses less than one second in three million years. ...
“Atomic clock.”Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/atomic%20clock. Accessed 23 Apr. 2025. Copy Citation Share Kids Definition atomic clock noun :an extremely exact clock that depends for its operation on the natural vibrations of atoms (as...
A clock that keeps time by the radiation frequency associated with a particular atomic reaction. Atomic clocks are used in official timekeeping.
The meaning of CLOCK is a device other than a watch for indicating or measuring time commonly by means of hands moving on a dial; broadly : any periodic system by which time is measured. How to use clock in a sentence.
atomic number 49, indium metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. blende, sphalerite, zinc blende - an ore that is the chief source of zinc; consists largely of zinc sulfide ...
the hands/face of the clock a digital clock — often used before another noun a clock tower [=a tower with a clock on at least one of its sides] a clock face — compare watch; see also alarm clock, atomic clock, biological clock, body clock, cuckoo clock, grandfather clock 2...
Specialized clocks, such as atomic clocks, may be constructed on different principles, and may have a very high precision for use in scientific observations. noun obsolete A watch, esp. one that strikes. noun obsolete The striking of a clock. noun A figure or figured work on the ankle or ...
The rapid increase in accuracy and stability of optical atomic clocks compared to the caesium atomic clock as the primary standard of time and frequency asks for a future redefinition of the second in the International System of Units (SI). The status of the optical clocks based on either ...
The rapid increase in accuracy and stability of optical atomic clocks compared to the caesium atomic clock as the primary standard of time and frequency asks for a future redefinition of the second in the International System of Units (SI). The status of the optical clocks based on either ...
The meaning of ATOMIC is of, relating to, or concerned with atoms. How to use atomic in a sentence.