roentgenkymogram
/ˌrʌntjənˈkʌɪmə(ʊ)ɡram/ /ˌrʌntɡənˈkʌɪmə(ʊ)ɡram/Medicine. Now rare
noun
A recording made with an X-ray kymograph.
Origin
Early 20th century. From Roentgen + Greek κῡμο-, combining form of κῦμα wave + -gram, after German Röntgenkymogramm.