atomic clock


atomic clock

noun

: a special kind of clock that is extremely exact

Full Definition of ATOMIC CLOCK

:  a precision clock that depends for its operation on an electrical oscillator regulated by the natural vibration frequencies of an atomic system (as a beam of cesium atoms)

First Known Use of ATOMIC CLOCK

1938

Browse

Next Word in the Dictionary: atomic constant
Previous Word in the Dictionary: atomic bomb
All Words Near: atomic clock

Seen & Heard

What made you want to look up atomic clock? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More