absorption line

noun

Definition of absorption line

: a dark line in an absorption spectrum

Examples of absorption line in a Sentence

Recent Examples on the Web

Instead, proof could arrive in the form of very distinct spectroscopic features—particularly an absorption line at 450 nanometers within the visible portion of the electromagnetic spectrum. Shannon Hall, Scientific American, "Water on Europa—with a Pinch of Salt," 12 June 2019 The most prominent absorption lines of hydrogen and ionized oxygen are at very short wavelengths, in the ultraviolet and X-ray portions of the spectrum. Quanta Magazine, "A Short History of the Missing Universe," 19 Sep. 2018 The precise shape of the absorption line also matches that seen in hydrogen, as the researchers report today in Nature. Adrian Cho, Science | AAAS, "Atoms and antiatoms haven’t crashed Albert Einstein’s theory of relativity—yet," 4 Apr. 2018

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

See More

First Known Use of absorption line

1861, in the meaning defined above

Keep scrolling for more

Learn More about absorption line

Statistics for absorption line

Look-up Popularity

Time Traveler for absorption line

The first known use of absorption line was in 1861

See more words from the same year

More from Merriam-Webster on absorption line

Britannica.com: Encyclopedia article about absorption line

Comments on absorption line

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

WORD OF THE DAY

one from the Upper Peninsula of Michigan

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
True or False

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

TAKE THE QUIZ
Dictionary Devil

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!