Sinus Common

Sinus has 4 different meanings across 1 category:

Definitions

Noun

an abnormal passage leading from a suppurating cavity to the body surface

"The surgeon carefully located the sinus that was draining pus from the deep abscess onto his leg."

fistula sinus

any of various air-filled cavities especially in the bones of the skull

"The doctor explained that her persistent headache was caused by fluid trapped inside a sinus, one of the small air-filled spaces within her skull."

sinus

a wide channel containing blood; does not have the coating of an ordinary blood vessel

"The surgeon carefully dissected the large sinus in the neck to remove the infected clot that had formed within its unlined walls."

venous sinus sinus

A pouch or cavity in a bone or other tissue, especially one in the bones of the face or skull connecting with the nasal cavities (the paranasal sinus).

"The doctor explained that my morning headaches were caused by fluid trapped inside an inflamed sinus near my cheekbone."