Lime is a term referring to a number of different citruses, both species and hybrids, which are typically round, green to yellow in color, 3-6 cm in diameter, generally containing sour pulp, and frequently associated with the lemon.<br>

In order to prevent scurvy during the 19th century, British sailors were issued a daily allowance of citrus such as lime (presumably Citrus aurantifolia), which led in time to the nickname “limey” for all Britons. It was later discovered that this beneficial effect derived from the quantities of Vitamin C the fruit contain.<br>

Lime extracts and essential oils are frequently used in perfumes, cleaning products, and aromatherapy. Such use should not be confused with that of the unrelated lime tree (Tilia sp.).<br>

In cooking, lime is valued both for the acidity of its juice and the floral aroma of its zest. It is used in Key lime pie, a traditional Florida dessert, and is a very common ingredient in authentic Mexican and Southwestern American dishes. It is also used for its pickling properties in ceviche. Additionally, the leaves of the Kaffir lime are used in southeast Asian cuisine. The use of dried limes as a flavoring is typical of Persian cuisine.