electromagnetic wave

noun
|Updated on: 21 Jul 2018

Definition of electromagnetic wave

: one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays

Recent Examples of electromagnetic wave from the Web

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

First Known Use of electromagnetic wave

1882

in the meaning defined above

See Words from the same year
NEW! Time Traveler

ELECTROMAGNETIC WAVE Defined for Kids

electromagnetic wave

noun

Definition of electromagnetic wave for Students

: a wave (as a radio wave or wave of light) that travels at the speed of light and consists of a combined electric and magnetic effect

Medical Dictionary

electromagnetic wave

noun

medical Definition of electromagnetic wave

: one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that include radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays

Learn More about electromagnetic wave


Seen and Heard

What made you want to look up electromagnetic wave? 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

very hard to disturb or upset

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet-pasta-spelling-help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

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!