Carbocation Definition:

A carbocation is an intermediate compound containing a positively charged carbon atom.

Carbocation Explained:

The carbocation is also an electrophile, because the positive charge on the carbon shows that the orbital is empty, and thus can readily receive electrons. More importantly, note that the definition of a carbocation and a Lewis acid are very similar. Recall that a Lewis acid is an acid that can easily accept protons, and thus is referred to as electron-accepting.