Emily Dickinson Lexicon

RE-CIP-RO-CA'TION, n. [L. reciprocatio.]

1. Interchange of acts; a mutual giving and returning; as, the reciprocation of kindnesses.
2. Alternation; as, the reciprocation of the sea in the flow and ebb of tides. – Brown.
3. Regular return or alternation of two symptoms or diseases. – Coxe.