ethmoidal_sinus
1. [ noun ] (anatomy,zoology) a sinus of the meatuses of the nasal cavity (behind the bridge of the nose)
Synonyms: sinus_ethmoidales ethmoid_sinus
Related terms: sinus
2. [ noun ] (anatomy,zoology) a sinus of the meatuses of the nasal cavity
Synonyms: sinus_ethmoidales
Related terms: sinus
Similar spelling:   ethmoid_sinus
  ethmoidal_vein
  ethmoidal_artery