I. ˈethˌmȯid adjective
or eth·moi·dal (ˈ)eth|mȯid ə l
Etymology: ethmoid from French ethmoïde, from Middle French, from Greek ēthmoeidēs like a strainer, perforated, ethmoid, from ēthmos strainer, colander (from ēthein to sift, strain) + -oeidēs -oid; ethmoidal from French ethmoïde + English -al; akin to Old Norse sāld sieve, Middle Irish sīthlad act of sifting, Welsh hidl strainer, Old Slavic sito, and perhaps to Latin serere to sow — more at sow
: of, relating to, or adjoining one or more bones forming part of the walls and septum of the nasal cavity ; also : of or relating to the whole region of the nasal capsule
II. noun
( -s )
: ethmoid bone