Meanings
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Verb forms
Verb forms are not available for this word yet.
Thesaurus
Synonyms
1
noun
· a photograph of the inside...
roentgenogram
2
noun
· a type of invisible...
roentgen-ray
Word family
Forms
x-rayedx-rayingx-rays
Etymology
From X + ray, a calque of German X-Strahl, coined by Wilhelm Röntgen upon his discovery of the rays in 1895, where X signifies their unknown nature. The chess sense is metaphorical, referring to control passing through a seemingly solid barrier.