electron cloud


Definition of electron cloud

: the system of electrons surrounding the nucleus of an atom

Examples of electron cloud in a Sentence

Recent Examples on the Web

When two atoms get close together, each one’s electron cloud pushes the other’s around, and sometimes the two atoms start to behave as a unit: a molecule. Sophia Chen, WIRED, "Chemists Orchestrate the Molecular Union of Two Single Atoms," 27 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'electron cloud.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of electron cloud

1920, in the meaning defined above

Keep scrolling for more

Learn More about electron cloud

Statistics for electron cloud

Look-up Popularity

Time Traveler for electron cloud

The first known use of electron cloud was in 1920

See more words from the same year

Comments on electron cloud

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


an act or instance of editing or removing

Get Word of the Day daily email!

Test Your Vocabulary

What's that Smell?! Quiz

  • wide eyed dog smelling rose
  • Someone who is hircine smells like a:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!