What does pinkeye mean?
Pinkeye is an informal name for conjunctivitis, an inflammation of the conjunctiva, the membrane that covers the inner eyelids and the front of the eye. The condition commonly produces red or bloodshot eyes, irritation, tearing, and a watery or thick discharge that may crust the eyelids. Pinkeye is often associated with viral or bacterial infections and can spread quickly through schools, workplaces, households, and daycare centers. Most cases resolve without specialized treatment, though medical advice may be appropriate for severe symptoms or for people who wear contact lenses. The word is chiefly used in North American informal speech, while “conjunctivitis” is the preferred term in medical and more formal contexts. Knowing both words helps distinguish an everyday complaint from its precise clinical description.
nounAn informal name for conjunctivitis, an inflammation of the conjunctiva, the clear membrane covering the inner eyelids and the front of the eye. It commonly causes redness, watering or discharge, and irritation.
- An informal name for conjunctivitis, especially the contagious form associated with redness and watery or crusted discharge.
"Her eyes were bloodshot from pinkeye, so she stayed home from school."
"The doctor said the pinkeye would clear up in a few days."
"Daycare centers often warn parents when a child has pinkeye."
Used when referring to multiple cases of conjunctivitis, as in “an outbreak of pinkeyes.”
"Doctors warned that pinkeyes can spread rapidly among children."
Pinkeye is highly contagious, making it a familiar classroom and family nuisance even though the medical term is conjunctivitis.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does pinkeye come from?
“Pinkeye” is a compound formed from “pink” and “eye,” referring to the reddish or pink appearance of an affected eye. The expression is an informal alteration of the older phrase “pink eye,” which was used for inflamed eyes before the medical term “conjunctivitis” became widespread. The separate spelling “pinkeye” became especially common in North American English.
How pinkeye is actually used
This is an informal, chiefly North American expression; “conjunctivitis” is the standard medical term. It can refer broadly to several kinds of eye inflammation, although it most often implies a contagious viral or bacterial infection.