Reciprocal
Reciprocal [1]
(1): ( a.) Reflexive; - applied to pronouns and verbs, but sometimes limited to such pronouns as express mutual action.
(2): ( a.) Done by each to the other; interchanging or interchanged; given and received; due from each to each; mutual; as, reciprocal love; reciprocal duties.
(3): ( a.) Mutually interchangeable.
(4): ( n.) That which is reciprocal to another thing.
(5): ( n.) The quotient arising from dividing unity by any quantity; thus, / is the reciprocal of 4; 1/(a +b) is the reciprocal of a + b. The reciprocal of a fraction is the fraction inverted, or the denominator divided by the numerator.
(6): ( a.) Used to denote different kinds of mutual relation; often with reference to the substitution of reciprocals for given quantities. See the Phrases below.
(7): ( a.) Recurring in vicissitude; alternate.
