blue·​shift | \ ˈblü-ˈshift How to pronounce blueshift (audio) \

Definition of blueshift

: the displacement of the spectrum of an approaching celestial body toward shorter wavelengths

Keep scrolling for more

Other Words from blueshift

blueshifted \ ˈblü-​ˈshif-​təd How to pronounce blueshifted (audio) \ adjective

Examples of blueshift in a Sentence

Recent Examples on the Web

Astronomers first studied faraway star surfaces by looking at the redshift or blueshift of light coming from the stars, a technique called Doppler imaging that reveals movement on the stars' surfaces. Jay Bennett, Popular Mechanics, "The Most Detailed Image of Another Star Is Also a Preview of Our Sun's Dying Days," 1 Feb. 2018

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

First Known Use of blueshift

1933, in the meaning defined above

Keep scrolling for more

Learn More about blueshift

Statistics for blueshift

Look-up Popularity

Time Traveler for blueshift

The first known use of blueshift was in 1933

See more words from the same year

More from Merriam-Webster on blueshift

Rhyming Dictionary: Words that rhyme with blueshift

Comments on blueshift

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


food or victuals

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

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!