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Medical Definition of Sinus posterior
1. A deep groove above the pyramidal eminence extending to the incudal fossa in the posterior wall of the tympanic cavity. (05 Mar 2000)
Lexicographical Neighbors of Sinus Posterior
Other Resources:
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1. A deep groove above the pyramidal eminence extending to the incudal fossa in the posterior wall of the tympanic cavity. (05 Mar 2000)