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 tympanic membrane 名詞
 鼓膜

 Tym·pan·ic a.
 1. Like a tympanum or drum; acting like a drumhead; as, a tympanic membrane.
 2. Anat. Of or pertaining to the tympanum.
 Tympanic bone Anat., a bone of the skull which incloses a part of the tympanum and supports the tympanic membrane.
 Tympanic membrane. Anat. See the Note under Ear.

 tympanic membrane
      n : the membrane in the ear that vibrates to sound [syn: eardrum,
           tympanum, myringa]