Eardrum Definition
 îrdrŭm 
  eardrums
  
    noun
  
 
    eardrums
  
Webster's New World 
The thin, semitransparent, oval-shaped membrane that separates the middle ear from the external ear.
 American Heritage Medicine 
Synonyms: 
  
- tympanum
- myringa
- tympanic-membrane
Other Word Forms of Eardrum
Noun
Singular:
 eardrumPlural:
 eardrumsEardrum Is Also Mentioned In
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