Also found in: Thesaurus, Medical.
Switch to new thesaurus
|Noun||1.||sinus ethmoidales - a sinus of the meatuses of the nasal cavity (behind the bridge of the nose)|
sinus - any of various air-filled cavities especially in the bones of the skull
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.