conjunctivitis
Conjunctivitis (noun) means an inflammation of the conjunctiva, the membrane covering the front of the eye and the inside of the eyelids, often caused by infection. Example: “The doctor diagnosed conjunctivitis after examining her red, itchy eyes.”
How to use conjunctivitis
Learner’s notesIn plain EnglishAn eye infection that makes the eye red, itchy and inflamed.
It is the formal medical term, while pinkeye is the everyday equivalent.
The plural forms are irregular, with conjunctivitides alongside conjunctivitises, so it is safest to keep the word uncountable in everyday use.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The doctor diagnosed _____ after examining her red, itchy eyes.
Etymology
The word is formed from conjunctiva, the name of the eye membrane, with the medical suffix -itis added to show inflammation.