Definition for NOS'TRIL

NOS'TRIL, n. [Sax. nosethyrl, næsethyrl. Thyrl or thirel is an opening or perforation; thirlian, thyrlian, to bore, to perforate, to thrill, to drill. See Drill.]

An aperture or passage through the nose. The nostrils are the passages through which air is inhaled and exhaled in respiration.

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