n. The act of grading, or the state of being graded; orderly or continuous arrangement or succession; serial order or sequence according to size, intensity, quality, rank, attainment, or the like.n. Hence Progress from one degree or state to another; a regular advance from step to step: as, the gradations of an argument.n. A degree or relative position in any order or series.n. In the fine arts, the regular arrangement or subordination to one another of the parts of any work of art, so as to produce the best effect, as, in painting, the gradual blending of one tint into another.n. In music, a diatonic ascending or descending succession of chords.n. In philology, the relation of the radical vowels in a series of verbal forms or derivatives derived with variation from the same verbal root, as sing, sang, sung: same as ablaut.n. In geology, the process of producing an even slope, by agencies of erosion and transportation, on which the supply and removal of rock-waste or detrital material are about balanced.