<anatomy> Like a sieve; cribriform.

Pertaining to, or in the region of, the ethmoid bone.

<anatomy> Ethmoid bone, a bone of complicated structure through which the olfactory nerves pass out of the cranium and over which they are largely distributed.

Origin: Gr. Like a sieve; sieve + from: cf. F. Ethmoide, ethmoidal.

(01 Mar 1998)