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Definition of Nasal septum

Nasal septum: The dividing wall that runs down the middle of the nose, separating the two nasal 'cavities, each of which ends in a nostril. The nasal septum is composed of bone, cartilage, and 'membranes.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=13720
Last Editorial Review: 3/19/2012

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