reciprocal

adj : concerning each of two or more persons or things; especially

given or done in return; "reciprocal aid"; "reciprocal

trade"; "reciprocal respect"; "reciprocal privileges at

other clubs" [ant: {nonreciprocal}]

n : (math) one of a pair of numbers whose product is 1: the

reciprocal of 2/3 is 3/2; the inverse of 7 is 1/7 [syn: {inverse}]