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Definition of middle ear noun from the Oxford Advanced Learner's Dictionary

middle ear

noun
 
/ˌmɪdl ˈɪə(r)/
 
/ˌmɪdl ˈɪr/
[singular]
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  1. the part of the ear behind the eardrum, containing the little bones that transfer sound vibrations compare inner ear, outer ear
See middle ear in the Oxford Advanced American Dictionary
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noun
 
 
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