Reciprocal - Definition

adj 1: concerning each of two or more persons or things;
especially given or done in return; "reciprocal aid";
"reciprocal trade"; "mutual respect"; "reciprocal
privileges at other clubs" [syn: reciprocal, mutual]
[ant: nonreciprocal]
2: of or relating to the multiplicative inverse of a quantity or
function; "the reciprocal ratio of a:b is b:a"
n 1: something (a term or expression or concept) that has a
reciprocal relation to something else; "risk is the
reciprocal of safety"
2: (mathematics) one of a pair of numbers whose product is 1:
the reciprocal of 2/3 is 3/2; the multiplicative inverse of 7
is 1/7 [syn: multiplicative inverse, reciprocal]
3: hybridization involving a pair of crosses that reverse the
sexes associated with each genotype [syn: reciprocal cross,
reciprocal]