A condition of lacking a nostril or nasal passage (extremely rare congenital malformation).
From Greek 'an-' (without) + 'nosis' (nostril). An obscure medical term from the 19th century for a congenital birth defect affecting nasal anatomy.
This word is almost extinct because the condition itself is so rare that modern doctors prefer terms like 'nares atresia'—it's a reminder that not all words survive just because they were once medically accurate.
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