What does tympanum mean?
Tympanum is a formal noun with two principal meanings. In anatomy, it means the eardrum, the delicate membrane at the end of the outer ear that vibrates when sound waves strike it and helps transmit sound into the middle ear. The term is especially associated with medical examinations, as in references to an intact or perforated tympanum. In architecture, a tympanum is the recessed surface above a doorway, window, or other opening, and it may contain sculptural or ornamental decoration. The word can sound technical or unfamiliar in general conversation, so eardrum and tympanic membrane are often clearer when discussing the anatomy. Knowing tympanum is nevertheless useful because it connects medical terminology with the long history of describing doors, windows, and arches in classical and medieval architecture.
nounThe tympanum, or eardrum, is the thin membrane separating the outer ear from the middle ear, which vibrates in response to sound waves. In architecture, the term also refers to a recessed, often decorated surface above a doorway, window, or other opening.
- The eardrum, or tympanic membrane, separating the outer ear from the middle ear.
- A recessed, often decorated architectural surface above a doorway, window, or similar opening.
"The doctor examined the patient's tympanum with an otoscope."
"The patient's tympanum was intact, with no sign of a perforation."
"The sculptor carved a floral tympanum above the cathedral's entrance."
Tympana is the standard plural in anatomical and architectural usage; tympanums is also used but is less common.
"The surgeon examined both tympana before beginning the procedure."
The tympanum is the body's little drum: a membrane that turns incoming sound waves into vibrations.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does tympanum come from?
The word was borrowed into English through Latin tympanum, from Greek tympanon, meaning “drum.” Its original sense was the eardrum, whose membrane was understood as having a drum-like function. The same root also underlies words such as tympanic, tympanist, tympanometer, and tympanitis.
Related word forms
How tympanum is actually used
In medicine, tympanum is a formal term, while eardrum and tympanic membrane are more familiar alternatives. Its architectural use is specialized but established.
Easily confused with tympanum
Tympanum is the standard full term for the eardrum or, in architecture, a recessed decorative surface; tympan is a shorter or less formal variant.