roentgen ray

noun, often capitalized 1st R

Definition of roentgen ray

: x-ray

First Known Use of roentgen ray

circa 1890, in the meaning defined above

Keep scrolling for more

Learn More About roentgen ray

Time Traveler for roentgen ray

Time Traveler

The first known use of roentgen ray was circa 1890

See more words from the same year

Dictionary Entries Near roentgen ray

roentgenoscope

roentgen ray

roentgen-ray tube

See More Nearby Entries 

Statistics for roentgen ray

Cite this Entry

“Roentgen ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/roentgen%20ray. Accessed 25 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

Keep scrolling for more

More Definitions for roentgen ray

roentgen ray

noun

Medical Definition of roentgen ray

WORD OF THE DAY

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!

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!