orthodiagram
/ˌɔːθə(ʊ)ˈdʌɪəɡram/Medicine. Now rare
noun
A radiographic image showing the exact size and shape of an organ, produced by orthodiagraphy or orthoroentgenography.
Origin
Early 20th century; earliest use found in The Practitioner: a monthly journal of therapeutics and public health. From orthodia- + -gram, after German Orthodiagramm.