In medical terminology, tympan- is used to build terms for anatomy, pathology, and procedures involving the eardrum and middle ear, such as tympanic membrane perforation, tympanitis, or tympanoplasty. Many ENT/otology procedure names use o‑ when the focus is surgical repair or measurement of the eardrum or middle ear space (e.g., tympanoplasty, tympanometry).
greek “tympan‑” comes from Greek tympanon meaning “drum,” which passed into Latin tympanum and then into anatomical usage for the ear’s “drum” (tympanic membrane/tympanum). The original sense of a drum or tambourine underlies both musical terms (timpani) and anatomical terms (tympanum, tympanic membrane), highlighting the drum‑like vibrating role of the eardrum in hearing.