lemon

Universal Words noun, adjective noun 1 [C,U] a yellow CITRUS fruit with a lot of sour juice. Slices of lemon and lemon juice are used in cooking and drinks: lemon tea * A gin and tonic with ice and lemon, please. * Squeeze the juice of half a lemon over the fish. * a lemon tree 2 [U] lemon juice or a drink made from lemon seealsoBITTERLEMON 3 (also lemon yellow) [U] a pale yellow colour 4 [C] (informal, especially AmE) a thing that is useless because it does not work as it should 5 [C] (BrE) a stupid person adjective (also lemon yellow) pale yellow in colour