Lime (Citrus aurantiifolia) is a small green citrus fruit grown in subtropical regions around the world. It has a sour, slightly sweet flavor and a sweet, spicy, citrusy scent. It is used in many beverages and dishes. Lime is high in vitamin C and other antioxidants. The peel is used to make lime essential oil, and its scent is known to be uplifting. Lime essential oil has antibacterial properties.