Pyrrhuloxia sinuata
— Navneord
– Engelsk
~ crested grey-and-red bird of southwest United States and Mexico
Phocoena sinus
— Navneord
– Engelsk
~ a short porpoise that lives in the Gulf of California; an endangered species
paranasal sinus
— Navneord
– Engelsk
~ any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities