gradatorya.[See Grade.]1. Proceeding step by step, or by gradations; gradual.()Could we have seen [Macbeth's] crimes darkening on their progress . . . could this gradatory apostasy have been shown us. (A. Seward.)2. (Zol.) Suitable for walking; -- said of the limbs of an animal when adapted for walking on land.()n.[Cf. LL. gradatarium.] (Arch.) A series of steps from a cloister into a church.()