gradationPronunciation: /grəˈdeɪʃ(ə)n/Translate gradation | into Italian Definition of gradation noun 1a scale or series of successive changes, stages, or degrees:the Act fails to provide both a clear and defensible gradation of offences an individual stage within a succession of changes, stages, or degrees:gradations of size a minute variation in shade, tone, or colour:amorphous shapes in subtle gradations of green and blue 2(in historical linguistics) another term for ablaut.Derivatives gradational adjective gradationally adverb Origin: mid 16th century: from Latin gradatio(n-), based on gradus 'step'gradation in other Oxford dictionaries Definition of gradation in the US English dictionary