noun. thin trapezoidal bone of the skull forming the posterior and inferior parts of the nasal septum.
1. Noun, singular or mass The bones in the face, other than the mandible and the *vomer* -- the bone that separates the left and right nasal cavities -- are arranged in pairs. 2. Interjection The facial bones are maxilla (two), palatine (two), zygomatic (two), lacrimal (two), nasal (two), vomer, inferior nasal conchs (two) and mandible.