◙ noun 1. a pale yellow oval citrus fruit with thick skin and fragrant, acidic juice • 柠檬 [mass noun] a drink made from or flavoured with lemon juice • 柠檬水，柠檬味饮料 »a port and lemon. 红葡萄酒和柠檬汁。 »[as modifier] lemon tea. 柠檬茶。 2. (也作 lemon tree)the evergreen citrus tree which produces this fruit, widely cultivated in warm climates • 柠檬树 3. Citrus limon, family Rutaceae • 拉丁名Citrus limon，芸香科 4. [mass noun] a pale yellow colour • 柠檬色 »[as modifier] lemon yellow. 柠檬黄。 »a lemon T-shirt. 柠檬黄T恤衫。 5. [informal] a person or thing regarded as unsatisfactory, disappointing, or feeble • [非正式] 蹩脚的人（或物）
【派生】
♦ lemony adjective
【语源】
1. Middle English: via Old French limon (in modern French denoting a lime) from Arabic līmūn (a collective term for fruits of this kind); compare with lime