limonenePronunciation: /ˈlɪməniːn/Definition of limonene noun [mass noun] Chemistry a colourless liquid hydrocarbon with a lemon-like scent, present in lemon oil, orange oil, and similar essential oils. A terpene; chemical formula: C10H16 Origin: early 20th century: from German Limonen, from Limone 'lemon', + -enelimonene in other Oxford dictionaries Definition of limonene in the US English dictionary
