atomic clock

Cultural Dictionary

atomic clock definition


The most accurate clock available. Time is measured by the movement of electrons in cesium atoms. The standard second is now defined by measurements on an atomic clock.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Explore Dictionary.com
Previous Definition: atomic bomb
Next Definition: atomic energy commission
Words Near: atomic clock
More from Thesaurus.com
Synonyms and Antonyms for atomic clock
More from Reference.com
Search for articles containing atomic clock
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature