Definition of Executive Clemency
The power of the chief executive (f.e. President or a governor) to pardon or commute a criminal sentence as, for example, the power to reduce the death penalty to life imprisonment. Art. II, § 2, U.S.Const. See also Clemency.
That's the definition of Executive Clemency in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.