What does Sinus mean?
- noun — a wide channel containing blood
- noun — any of various air-filled cavities especially in the bones of the skull
- noun — an abnormal passage leading from a suppurating cavity to the body surface
Synonyms
- fistula
Letter by letter
- S as the first letter
- I as the second letter
- N as the third letter
- U as the fourth letter
- S as the fifth letter