Definition of lime noun from the Oxford Advanced American Dictionary

lime

noun
/laɪm/
 
 
1 [countable, uncountable] a small green fruit, like a lemon, with a lot of sour juice, used in cooking and in drinks; the juice of this fruitlime juiceslices of lime2 (also lime tree) [countable] a tree on which limes grow3 (also quicklime) [uncountable] a white substance obtained by heating limestone, used in building materials and to help plants grow4 (also lime tree) [countable] = linden5 [uncountable] = lime green