Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “physics”

physics

noun [U]    /ˈfɪz·ɪks/
science the scientific study of matter and energy and the effect that each has on the other: nuclear/particle/theoretical physics
(Definition of physics noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
Focus on the pronunciation of physics

Definitions of “physics” in other dictionaries

Word of the Day

limber up

to do gentle exercises to stretch the muscles in order to prepare the body for more active physical exercise

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