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ethmoidal vein is a noun meaning "veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein". It carries one recorded sense.
veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein
Definitions, synonyms and semantic relations for ethmoidal vein come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.