Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: eardrum  'eer,drúm
  1. The membrane in the ear that vibrates to sound
    - tympanum, tympanic membrane, myringa

Derived forms: eardrums

Type of: membrane, tissue layer

Part of: ear, earhole [informal], lug [Brit, informal], lughole [Brit, informal]

Encyclopedia: Eardrum