A bone, or one of a pair of bones, beneath the ethmoid region of the skull, forming a part a part of the partition between the nostrils in man and other mammals.
1.) The narrow bone forming the lower and posterior half of the nasal septum (Morris 1992). 2.) A usually median unpaired bone on the roof of the mouth, often bearing teeth; also called prevomer.
A median unpaired bone lying in the floor of the nasal cavity above the hard palate. zygoma (pl. zygomata) - See zygomatic arch.