Obs. rare–1. [f. QUINTUPLE v. + -ATION.] = QUINTUPLICATION.
1684. J. Wallis, Angular Sections, iv. 27. Of the Quintuplation and Quinquisection of an Arch or Angle.
Obs. rare–1. [f. QUINTUPLE v. + -ATION.] = QUINTUPLICATION.
1684. J. Wallis, Angular Sections, iv. 27. Of the Quintuplation and Quinquisection of an Arch or Angle.
