reciprocal

nouns

something (a term or expression or concept) that has a reciprocal relation to something else
"risk is the reciprocal of safety"
reciprocal
is a type of (narrower)
a relation of mutual dependence or action or influence
reciprocality, reciprocity
(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
multiplicative inverse, reciprocal
hybridization involving a pair of crosses that reverse the sexes associated with each genotype
reciprocal, reciprocal cross

adjectives

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"
mutual, reciprocal
is derived from
reciprocity
is derived from
reciprocity
is derived from
reciprocality
antonym
nonreciprocal
of or relating to the multiplicative inverse of a quantity or function
"the reciprocal ratio of a:b is b:a"
reciprocal
is similar to
opposite in nature or effect or relation to another quantity
"a term is in inverse proportion to another term if it increases (or decreases) as the other decreases (or increases)"
inverse