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Meaning of heresiology

he•re•si•ol•o•gy

Pronunciation: (hu-rē"zē-ol'u-jē, -sē-, her"u-sē-), [key]
— pl. -gies
  1. the study of heresies.
  2. a heresiography.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.