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Ethmoid: 1. As an adjective: spongy or sievelike. From the Greek ethmos, sieve + eidos, resemblance = like a sieve. 2. As a noun; short for the ethmoid bone, a spongy bone that serves as the front floor of the skull and the roof of the nose. 3. As a noun: short for the ethmoid sinus, which is made up of numerous thin-walled air cells within the ethmoid bone.
eth·moid (th moid) also eth·moi·dal (th-moid l) adj. Of, relating to, or being a light spongy bone located between the orbits, forming part of the walls and septum ...
Library > Literature & Language > Dictionary ( ĕth ' moid ' ) also eth·moi·dal ( ĕth-moid ' l ) adj. Of, relating to, or being a light spongy bone located between ...
5a. 6. Ethmoid bone - Human Anatomy ... The ethmoid bone is exceedingly light and spongy, and cubical in shape; it is situated at the anterior part of the base of the cranium ...
adjective 1. Also, eth·moi·dal. of or pertaining to a bone at the base of the cranium and the root of the nose, containing numerous perforations for the filaments ...
The ethmoid bone (from Greek ethmos, "sieve") is a bone. in the skull. that separates the nasal cavity. from the brain. As such, it is located at the roof of the nose