lemon juice noun2 •The liquid extract of lemon fruit, notably sour and often condensed, as used especially in food preparation. •The juice of a sweet lemon or sweet lime.Smita Dongre settled Vikram on the sofa and a young lady dressed in a bright salwar kameez placed lemon juice and biscuits on the table. [...] Vikram sipped sugary lemon juice. — 2014 formslemon juices