- the yellowish, acid fruit of a subtropical citrus tree, Citrus limon.
- the tree itself.
- lemon yellow.
- a person or thing that proves to be defective, imperfect, or unsatisfactory; dud: His car turned out to be a lemon.
- made of or with lemon.
- having the color, taste, or odor of lemon.
- a small Asian evergreen tree, Citrus limon, widely cultivated in warm and tropical regions, having pale green glossy leaves and edible fruits
- the yellow oval fruit of this tree, having juicy acidic flesh rich in vitamin C
- (as modifier)
- Also called: lemon yellow
- a greenish-yellow or strong yellow colour
- (as adjective)
- a distinctive tart flavour made from or in imitation of the lemon
- a person or thing considered to be useless or defective
