1A cocktail usually consisting of gin, egg white, and grenadine.
2 slang (originally and chiefly US). A barbiturate. Usually in plural.
3US, Australian informal A female voluntary worker in a hospital.
4Usually with capital initials. A trademark for: the Cripps Pink cultivar of dessert apple, which has a deep pink blush and requires a long, warm growing season to ripen.
1920s; earliest use found in The Daily Northwestern. From pink + lady.