You searched for: “reciprocations
reciprocation (s) (noun), reciprocations (pl)
1. An action or an arrangement that involves two people or groups of people who behave in the same way or agree to help each other and give each other advantages.
2. A returning, usually for something given.
3. A mutual giving and receiving.
4. In prosthodontics, the means by which one part of an appliance is made to counter the effect created by another part.

Prosthodontics refers to a dental specialty concerned with the restoration and maintenance of oral function by the replacement of missing teeth and structures by artificial devices or prostheses.

5. In electronics, a process by which a reciprocal impedance (or network) is derived from a given impedance (or network).