ostiary definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
noun pl. ostiaries
Origin: Classical Latin ostiarius ; from ostium, door, entrance ; from os, mouth: see oral
ostiary definition by American Heritage Dictionary
noun pl. os·ti·ar·ies
- Roman Catholic Church One who is ordained in the lowest of the former minor orders.
- A church doorkeeper.
Origin: Middle English hostiary, from Latin ōstiārius, doorkeeper, from ōstium, door, from ōs, mouth; see ōs- in Indo-European roots.