Wilhelm Konrad Rontgen vs Roentgen

Wilhelm Konrad Rontgen and Roentgen both are nouns.

Word	Noun	Adjective	Verb	Adverb
Wilhelm Konrad Rontgen	Yes	No	No	No
Roentgen	Yes	No	No	No

As nouns, Wilhelm Konrad Rontgen and Roentgen are synonyms defined as:

Wilhelm Konrad Rontgen and Roentgen: German physicist who discovered x-rays and developed roentgenography (1845-1923)

Other synonyms of Wilhelm Konrad Rontgen include Rontgen, Wilhelm Konrad Roentgen.

Wilhelm Konrad Rontgen (noun)	Roentgen (noun)
German physicist who discovered x-rays and developed roentgenography (1845-1923)	German physicist who discovered x-rays and developed roentgenography (1845-1923)