Definition of eardrum in English:

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eardrum

Pronunciation: /ˈɪədrʌm/

noun

The membrane of the middle ear, which vibrates in response to sound waves; the tympanic membrane.
Example sentences
  • The ear canal is closed at its inner end by a thin diaphragm of stretched skin known as the eardrum or tympanic membrane, which vibrates as the air pressure changes.
  • When the eardrum vibrates, tiny bones within the middle ear transmit the sound signals to the inner ear.
  • In some cases, a doctor may suggest inserting a tube through the eardrum to allow the middle ear to drain.
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