Wiktionary
hemotympanum
alt. (context medicine English) The presence of blood in the tympanic cavity of the middle ear. n. (context medicine English) The presence of blood in the tympanic cavity of the middle ear.
Wikipedia
Hemotympanum
Hemotympanum, or hematotympanum, refers to the presence of blood in the tympanic cavity of the middle ear. Hemotympanum is often the result of basilar skull fracture.