Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “particle”

particle

noun [C]  /ˈpɑr·t̬ɪ·kəl/ us  
an extremely small piece of something: dust particles physics A particle is also any of the smallest pieces of matter that make up atoms or the parts of atoms.
(Definition of particle from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of particle?
Add Cambridge dictionaries to your browser to your website

Definitions of “particle” in other dictionaries

Word of the Day

bitter

a type of dark brown beer with a bitter taste

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More