Graduated

a.	1.	Marked with, or divided into, degrees; divided into grades.
	2.	(Zool.) Tapered; - said of a bird's tail when the outer feathers are shortest, and the others successively longer.
	3.	Having visible marks and numbers at vertical intervals, permitting one to estimate the quantitity of material contained; - of vessels, most commonly those used in laboratories for containing liquids. See graduated cylinder, etc., below. Graduated cylinder a vessel, usually of glass, having horizontal marks upon its sides, with figures, to indicate the amount of the contents at the several levels. Graduated spring (Railroads) a combination of metallic and rubber springs.

Adj.	1.	graduated - increasing as the amount taxed increases Synonyms: proportional
	2.	graduated - marked with or divided into degrees; "a calibrated thermometer" Synonyms: calibrated
	3.	graduated - decreasing as the amount taxed increases
	4.	graduated - slowly and smoothly Synonyms: gradational, gradatory

regressive