Home » Ethmoidal
(Science: anatomy) like a sieve; cribriform.
Pertaining to, or in the region of, the ethmoid bone.
(Science: 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.