lemon

noun

• 1a yellow, oval citrus fruit with thick skin and fragrant, acidic juice.
• a drink made from or flavored with lemon juice:a port and lemon [as modifier]:lemon tea

• 2 (also lemon tree) the evergreen citrus tree that produces the lemon, widely cultivated in warm climates.

  • Citrus limon, family Rutaceae

• 3a pale yellow color: [as modifier]:lemon yellow a lemon T-shirt

• 4 informal a person or thing, especially an automobile, regarded as unsatisfactory, disappointing, or feeble.