adjective
(1) Of or relating to the multiplicative inverse of a quantity or function
"The reciprocal ratio of a:b is b:a"
(2) 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"
noun
(3) Hybridization involving a pair of crosses that reverse the sexes associated with each genotype
(4) (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
(5) Something (a term or expression or concept) that has a reciprocal relation to something else
"Risk is the reciprocal of safety"
Adjective
reciprocal
- Of an action, feeling, etc, done, felt, etc, by each of two people to, on or towards the other.
- In the contrary or opposite way, order, or direction
Noun
- Of a number, the number obtained by dividing 1 by the given number; the result of exchanging the numerator and the denominator of a fraction.
- 0.5 is the reciprocal of 2.