|1.||the act of proceeding in a regular formation|
|2.||a group of people or things moving forwards in an orderly, regular, or ceremonial manner|
|3.||a hymn, litany, etc, sung in a procession|
|4.||Christianity the emanation of the Holy Spirit|
|5.||rare (intr) to go in procession|
|[C12: via Old French from Latin prōcessiō a marching forwards]|
in Christianity, organized body of people advancing in formal or ceremonial manner as an element of Christian ritual or as a less official expression of popular piety. Public processions seem to have come into vogue soon after the recognition of Christianity as the religion of the Roman Empire by Constantine in the 4th century.
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