electromagnetism

noun elec·tro·mag·ne·tism \ i-ˌlek-trō-ˈmag-nə-ˌti-zəm \

Definition of electromagnetism

1 :magnetism developed by a current of electricity
2 a :a fundamental physical force that is responsible for interactions between charged particles which occur because of their charge and for the emission and absorption of photons, that is about a hundredth the strength of the strong force, and that extends over infinite distances but is dominant over atomic and molecular distances called also electromagnetic force; compare gravity 3a(2), strong force, weak force
b :a branch of physical science that deals with the physical relations between electricity and magnetism

Recent Examples of electromagnetism from the Web

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

First Known Use of electromagnetism

1821


ELECTROMAGNETISM Defined for English Language Learners

electromagnetism

noun

Definition of electromagnetism for English Language Learners

  • : a magnetic field that is produced by a current of electricity


Medical Dictionary

electromagnetism

noun elec·tro·mag·ne·tism \ i-ˌlek-trō-ˈmag-nə-ˌtiz-əm \

medical Definition of electromagnetism

1 :magnetism developed by a current of electricity
2 :physics dealing with the relations between electricity and magnetism


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

serious difficulty or misfortune

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one-green-toy-robot-amidst-many-red-toy-robots
  • Which of these words does not mean "nonsense"?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ

Love words? Need even more definitions?

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