ethmoid

Etymology
Borrowing from, from , from.

Noun

 * 1)  A light spongy cubical bone at the root of the nose, forming much of the walls of the nasal cavity and part of those of the orbits and having many perforations through which the olfactory nerves pass to the nose.

Adjective

 * 1)  Of or pertaining to the ethmoid bone.