red-eye

The names of animals that have red eyes.

Types of beverages.

(travel) An overnight airplane flight.

“I waited too late to book my holiday flight, so I had to take the red-eye.”

Redness of the conjunctiva; especially when caused by conjunctivitis (pink-eye).

Redness in the eye(s) of someone in a colour photograph, as an unwanted consequence of light from a flash reflecting off blood vessels in the retina.

(travel) Often followed by it: to travel on a red-eye.