A cartilaginous dividing wall or partition, especially the nasal septum when it consists primarily of cartilage.
From Greek chondros (cartilage) + Latin septum (fence or dividing wall). The term emerged in anatomical nomenclature to distinguish the cartilaginous portions of structural dividers in the body from bony ones.
Your nose is mostly held up by a chondroseptum—which is why breaking your nose when it's young can permanently change its shape, since cartilage remodels differently than bone does.
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