x-radiation

noun

x-ra·​di·​a·​tion ˌeks-ˌrā-dē-ˈā-shən How to pronounce x-radiation (audio)
often capitalized
1
: exposure to X-rays
2
: radiation composed of X-rays

Word History

First Known Use

1896, in the meaning defined at sense 1

Time Traveler
The first known use of x-radiation was in 1896

Dictionary Entries Near x-radiation

X-radiate

x-radiation

X-rated

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Cite this Entry

“X-radiation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/x-radiation. Accessed 28 Nov. 2024.

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Medical Definition

x-radiation

noun
x-ra·​di·​a·​tion
often capitalized X
1
: exposure to X-rays
2
: radiation composed of X-rays
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