What is Reversioner?

Legal Definition
Estates. One entitled to a reversion.

2. Although not in actual possession, the reversioner having a vested interest in the reversion, is entitled to his action for an injury done to the inheritance. 4 Burr. 2141. The reversioner is entitled to the rent, and this important incident passes with a grant or assignment of the reversion. It is not inseparable from it, and may be severed and excepted out of the grant by special words. Co. Litt. 143, a, 151, a, b Cruise, Digest, t. 17, s. 19.
-- Bouviers Law Dictionary
Legal Definition
A person who ls entitled to an estote in reversion. By an extension of its meaning, one who is entitled to any future estate or any property in expectancy.
-- Black's Law Dictionary
Legal Definition
One who is entitled to a reversion.
-- Ballentine's Law Dictionary