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Meaning of Petrobrusian

Pet•ro•bru•sian

Pronunciation: (pe"trō-br'zhun, -shun), [key]
— n.
  1. a member of a 12th-century sect in S France that rejected the Mass, infant baptism, prayers for the dead, sacerdotalism, the veneration of the cross, and the building of churches.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.