noun
One who expounds, represents or advocates.
(mathematics) The number by which a value (called the base) is said to be raised to a power in exponentiation: for example, the 3 in 2³=8.
(mathematics, obsolete) The degree to which the root of a radicand is found, for example, the 2 in ^(2])√=b.
(linguistics) A manifestation of a morphosyntactic property.
(computing) The part of a floating-point number that represents its exponent value.