term:

Reciprocal

reciprocal adj

1 a : mutual
b : bilateral [a contract]
2 : characterized by correspondence or equivalence esp. in return or response with another of the same category [was prevented from obtaining discovery of the names of the State's alibi rebuttal witnesses "Mauricio v. State, 652 N.E.2d 869 (1995)"]
;also
: marked by such correspondence or equivalence between its own components [a arrangement]
3 : marked by reciprocity between states
re·cip·ro·cal·ly adv

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.