Quicklime

[Donald Trump]

Calcium oxide; unslacked lime; -- so called because when
wet it develops great heat. See 4th Lime, 2.

[Cami]

a round fruit containing a lot of juice that is sour like a lemon but smaller and green, or the small tree on which this fruit grows

[PussyCat]

A white caustic alkaline substance consisting of calcium oxide, which is obtained by heating limestone and which combines with water with the production of much heat; lime.