red-eye

Meanings

1. Any of various animals that have red eyes.
2. The common rudd (Scardinius erythrophthalmus), a freshwater fish.
3. Any of various grass-skippers or hesperiid butterflies of the genus Matapa.
4. The red-eyed treefrog (Agalychnis callidryas), which is native to neotropical rainforests.
5. A species of cicada, Psaltoda moerens, native to eastern Australia.
6. The red-eyed vireo (Vireo olivaceus), a small American songbird.
7. Any of various round herrings of the genus Etrumeus.
8. Either of two subspecies of the copperhead (Agkistrodon contortrix), a venomous pit viper native to the United States: either the broad-banded copperhead or Texas copperhead (Agkistrodon contortrix laticinctus), or the highland moccasin or northern copperhead (Agkistrodon contortrix mokasen).
9. Any of various sunfishes of the family Centrarchidae, especially the redeye bass (Micropterus coosae) or the rock bass (Ambloplites rupestris).
10. The redeye tetra (Moenkhausia sanctaefilomenae), a freshwater fish, commonly kept in aquariums, native to South America.
11. Types of beverages or sauces.
12. A drink made by adding a shot of espresso to a cup of coffee.

1. Often followed by it: to travel on a red-eye (“an overnight airplane flight”).

Etymology

The noun is derived from red + eye; sense 2.3 (“strong but poor-quality whiskey”) and sense 3 (“overnight airplane flight”) are probably so named because they may cause people to develop bloodshot eyes. The verb is derived from the noun.