lemon
noun
[ ˈlɛmən ]
• a pale yellow oval citrus fruit with thick skin and fragrant, acidic juice.
• "the juice of seven lemons"
• the evergreen citrus tree which produces lemons, widely cultivated in warm climates.
• a pale yellow colour.
• "a lemon T-shirt"
• an unsatisfactory or feeble person or thing.
• "car-makers cannot afford to create lemons"
Origin:
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 lime2.