heortology: Meaning and Definition of

he•or•tol•o•gy

Pronunciation: (hē"ôr-tol'u-jē), [key]
— n.
  1. the study of the history and significance of the feasts and seasons in the ecclesiastical calendar.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.