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Definition of oval window noun from the Oxford Advanced Learner's Dictionary

oval window

noun

/ˌəʊvl ˈwɪndəʊ/

/ˌəʊvl ˈwɪndəʊ/

(anatomy)

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the first of two openings covered by a membrane (= a thin layer of skin) between the middle ear and the inner ear compare round window

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