Dictionary.com
Thesaurus.com

Röntgen

American  
[rent-guhn, -juhn, ruhnt-, rœnt-guhn, roont-khuhn] / ˈrɛnt gən, -dʒən, ˈrʌnt-, ˈrœnt gən, ˈrunt xən /

noun

  1. Julius 1855–1932, Dutch pianist, conductor, and composer; born in Germany.

  2. Wilhelm Konrad Roentgen, Wilhelm Konrad.


Röntgen 1 British  
/ -tjən, ˈrɛnt-, ˈrɒntɡən, ˈrœntɡən /

noun

  1. a variant spelling of (Wilhelm Konrad) Roentgen

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

röntgen 2 British  
/ ˈrɒntɡən, -tjən, ˈrɛnt- /

noun

  1. a variant spelling of roentgen

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Wilhelm Conrad Röntgen discovered X-rays while studying electrical currents flowing through glass tubes.

From Science Daily • Mar. 14, 2026

If, for Anna Röntgen and Hans Castorp, the X-ray produced something that was undeniably and terrifyingly their own body, I was having the opposite experience.

From New York Times • Aug. 2, 2023

He felt  that he should have discovered X-rays before Wilhelm Röntgen, and was sure that he would have done so if the jealousies of senior professors had not denied him better opportunities.

From Scientific American • Feb. 13, 2015

In 1901, Röntgen was awarded the first Nobel Prize for physics for his work in this field.

From Textbooks • Jun. 19, 2013

I do not mean the Röntgen ray, nor the emanation from radium, both of which are invisible, but neither of which is light, in that neither can be reflected nor refracted.

From The Grain Ship by Robertson, Morgan