corotation

co·ro·tate

C0655400 (kō-rō′tāt′)intr.v. co·ro·tat·ed, co·ro·tat·ing, co·ro·tates To rotate on an axis in the same period of time as it takes to orbit another object.
co′ro·ta′tion n.co′ro·ta′tion·al adj.

corotation

(ˌkəʊrəʊˈteɪʃən) nthe act of corotating