sinusitis
Sinusitis (noun) means Sinusitis is the inflammation of one or more of the sinuses in the skull around the nose. Example: “His sinusitis flared up again with the change in weather.”
How to use sinusitis
Learner’s notesIn plain EnglishSinusitis means your sinuses, the air pockets around your nose, are inflamed and often sore or blocked.
It is a medical term, though common enough to appear in everyday conversation about colds and allergies.
The -itis ending is a useful pattern to learn, since it marks inflammation in many other medical words too.
Trace the full origin ↓Fill the gap
Can you complete this real example?
His _____ flared up again with the change in weather.
Etymology
Sinusitis is formed from sinus, the word for the air-filled cavities around the nose, with the medical suffix -itis added to show inflammation.