What is the meaning of Gradual?

Proceeding or advancing by small, slow, regular steps or degrees

An antiphon or responsory after the epistle, in the Mass, which was sung on the steps, or while the deacon ascended the steps.

A service book containing the musical portions of the Mass.

gradual (which is done by degrees)

gradual, progressive (that increases or decreases little by little)

gradual (verses of the mass, between the Epistle and the Gospel)

gradual (plainchant book)

Source: wiktionary.org

See also