Lime is a term referring to a number of different fruits (generally citruses), both species and hybrids, which have their origin in the Himalayan region of India, and which are typically round, green to yellow in color, 3â€“6 cm in diameter, generally containing sour and acidic pulp. They are frequently associated with the lemon. Limes are often used to accent the flavors of foods and beverages. They are usually smaller than lemons, and a good source of vitamin C. Limes are grown all year round and are usually sweeter than lemons. An extract is a substance made by extracting a part of a raw material, often by using a solvent such as ethanol or water. Extracts may be sold as tinctures or in powder form. The aromatic principles of many spices, nuts, herbs, fruits, etc., and some flowers, are marketed as extracts, among the best known of true extracts being almond, cinnamon, cloves, ginger, lemon, nutmeg, orange, peppermint, pistachio, rose, spearmint, vanilla, violet, and wintergreen.