Occurring or developing slowly or by small increments: gradual erosion; a gradual slope.
Roman Catholic Church
1. The liturgical book containing the chants for the Mass.
2. A biblical text sung between the Epistle and the Gospel of the Mass.
[Middle English, having steps, from Medieval Latin graduālis, from Latin gradus, step; see GRADE. N., Middle English, from Medieval Latin graduāle, the part of the service sung by the choir from the altar steps, gradual, from neuter sing. of graduālis.]
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