Pinkeye (noun)

An infection of the conjunctiva, the membrane that lines the eyelid and covers the white part of the eye, that causes redness, itching, and discharge.

Origin:

The word "pinkeye" is an informal term that originated in the 19th century, it refers to an infection of the conjunctiva, the membrane that lines the eyelid and covers the white part of the eye.

Examples:

1. I woke up this morning with pinkeye and I can barely open my eyes.
2. The doctor said that I have pinkeye and prescribed me some antibiotics.
3. The pinkeye spread quickly through the school, many children got infected.
4. I have pinkeye, so I have to wear these dark glasses.
5. Pinkeye is highly contagious and can easily be spread through touching the eyes or sharing personal items.