X-ray star

noun

: a luminous celestial object emitting a major portion of its radiation in the form of X-rays

called also X-ray source

Word History

First Known Use

1964, in the meaning defined above

Time Traveler
The first known use of X-ray star was in 1964

Dictionary Entries Near X-ray star

Cite this Entry

“X-ray star.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/X-ray%20star. Accessed 21 Nov. 2024.

Love words? Need even more definitions?

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