Ethmoid

[eθmɒid]

(noun.) one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity.

Checked by Aron--From WordNet

(a.) Alt. of Ethmoidal

(n.) The ethmoid bone.

Checker: Raymond

adj. resembling a sieve.—Ethmoid bone one of the eight somewhat cubical bones which collectively form the cranial box.

Typist: Sadie