Ethmoid

a. [Fr. ethmoide, ethmoidal, Gr. ἠθμοειδής, like a sieve, from ἠθμός, sieve, and εἶδος, form.] (Anat.) Resembling a sieve; cribriform.

Ethmoid bone (Anat.), the bone through which the nerves of olfaction pass to the nose, and on which they are mainly distributed.