Definition of roentgenologist in English:
roentgenologist
(also röntgenologist)
noun ˌrəːntɡəˈnɒlədʒɪstˌrʌntɡəˈnɒlədʒɪstˌrʌntjəˈnɒlədʒɪst
An expert or specialist in roentgenology; = "radiologist".
Origin
Early 20th century; earliest use found in Physician & Surgeon. From roentgeno- + -ologist. Compare German Röntgenologe.