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Medical Definition of Ethmoidal notch
1. An oblong gap between the orbital parts of the frontal bone in which the ethmoid bone is lodged. Synonym: incisura ethmoidalis. (05 Mar 2000)
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1. An oblong gap between the orbital parts of the frontal bone in which the ethmoid bone is lodged. Synonym: incisura ethmoidalis. (05 Mar 2000)