Is a Lime a Fruit or Vegetable?
Botanically, this is...
A Hesperidium!
(A type of fruit)
Culinarily, this is...
Limes are classic fruits. They are often added to drinks for flavoring. Although they are possibly the least sweet fruit, they are very sour. They are green, but it is a colorful, light, distinctive, fruity green; and they look just like the rest of the citrus fruits. Clearly the lime not a vegetable.