gradations is a form of:

Gradation



noun
1.
(An arranging in grades, stages, or steps, successive stage in progress, degree, a step, or series of steps) gradation from red to blue ការមានជាលំដាប់ successive gradations លំដាប់
ENGLISH MEANING
noun
1.
The act of progressing by regular steps or orderly arrangement; the state of being graded or arranged in ranks; as, the gradation of castes.
2.
The act or process of bringing to a certain grade.
3.
Any degree or relative position in an order or series.
4.
A gradual passing from one tint to another or from a darker to a lighter shade, as in painting or drawing.
5.
A diatonic ascending or descending succession of chords.
verb
1.
(TRANSITIVE) To form with gradations.