tympanum
tympanum
UK[ˈtɪmpənəm]US[ˈtɪmpənəm]
n
the eardrum.
n
a membrane covering the hearing organ on the leg or body of an insect.
n
a recessed, often triangular, space enclosed between the horizontal and sloping cornices of a pediment, or a similar space over a door or window, often containing sculpture.
Etymology
the word 'tympanum' entered english in the early 17th century directly from latin, where it meant 'drum' or 'eardrum'. the latin term itself was borrowed from the ancient greek 'τύμπανον' (týmpanon), which also referred to a drum or kettledrum. this greek word is believed to be derived from the verb 'τύπτω' (týptō), meaning 'to strike' or 'to beat', a fitting origin for an object that is struck or vibrates. the semantic evolution from a musical instrument to the anatomical eardrum is a clear metaphorical extension, based on the membrane's drum-like function in vibrating to transmit sound waves.
Analysis
the word is a direct loanword from latin and functions as a simplex noun in english.
Examples
the doctor examined the patient's tympanum for signs of infection or perforation.
in cicadas, the tympanum is a key organ for detecting the calls of potential mates.
the intricate carvings within the cathedral's tympanum depicted scenes from the last judgment.