Reciprocity may mean "a mutual exchange of privileges" and is often applied to things such as professional certification (neighboring states may have a reciprocal agreement so that …

A reciprocal action or arrangement involves two people or groups of people who behave in the same way or agree to help each other and give each other advantages.

The reciprocal is simply: 1/number. To get the reciprocal of a number, we divide 1 by the number. We can think of a whole number as being...

Definition of reciprocal adjective from the Oxford Advanced Learner's Dictionary. involving two people or groups who agree to help each other or behave in the same way to each other. The …

reciprocal, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Math. the ratio of unity to a given quantity or expression; that by which the given quantity or expression is multiplied to produce unity: The reciprocal of x is 1/ x.

reciprocal /rɪˈsɪprəkəl/ adj of, relating to, or designating something given by each of two people, countries, etc, to the other; mutual: reciprocal friendship, reciprocal trade