Grad"u*a"ted (?), a. 1. Marked with, or divided into, degrees; divided into grades.

2. (Zoöl.) Tapered; -- said of a bird's tail when the outer feathers are shortest, and the others successively longer.

Graduatedtube, bottle, cap, or glass, 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.