X-ray astronomy

noun

Definition of X-ray astronomy

: astronomy dealing with investigations of celestial bodies by means of the X-rays they emit

First Known Use of X-ray astronomy

1963, in the meaning defined above

Learn More About X-ray astronomy

Time Traveler for X-ray astronomy

Time Traveler

The first known use of X-ray astronomy was in 1963

See more words from the same year

Dictionary Entries Near X-ray astronomy

x-ray absorbing glass

X-ray astronomy

X-ray diffraction

See More Nearby Entries 

Statistics for X-ray astronomy

Cite this Entry

“X-ray astronomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/X-ray%20astronomy. Accessed 6 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?

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!