roentgen ray

noun, often capitalized 1st R

Definition of roentgen ray

First Known Use of roentgen ray

circa 1890


Medical Dictionary

roentgen ray

noun

medical Definition of roentgen ray

:x-ray 1

Learn More about roentgen ray


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

marked by intense feeling

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!