sinus

Definitions

General English

• noun an empty space inside the body, especially the spaces inside your head behind the cheekbone and nose

General Science

• noun an air-filled cavity in the bones of the face and skull, especially one that opens into the nasal passages
• noun an indentation between petals or the lobes of a leaf

Medical

• noun a cavity inside the body, including the cavities inside the head behind the cheekbone, forehead and nose
• noun a tract or passage which develops between an infected place where pus has gathered and the surface of the skin
• noun a wide venous blood space

Nearby Definitions of “sinus”

• singularity
• sink
• Sinope
• sinter
• sintering
• sinus
• siphon
• Sir Alan Ayckbourn
• Sir Alan Bates
• Sir Alec Guinness
• Sir Anthony Hopkins

Contexts for “sinus”

6 definitions in context
• General English
• General Science
• Medical