1. An aperture through the nose.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• nostrols,
• nostrals,
• nostrels,
• nostrol,
• nostrials,
• nostrell,
• nosetrils,
• nostrel,
• nostrill,
• nustral,
• nostriles,
• nostrail,
• nostrle,
• nostil,
• nostrills,
• nostrile,
• nostroils,
• nostral,
• bostroic,
• dootrel

• nocturnal,
• nostrils,
• nostrum,
• nocturne,
• nocturia.

The adjective form of the word "nostril" is "nasal".

The plural of the "nostril" can be the "nostrils".

The singular of the "nostril" can be the "nostril".