- os|ti|ar|y
- os|ti|ar|y «OS tee EHR ee», noun, plural -ar|ies.1. a doorkeeper, especially of a church.2. in the Roman Catholic Church: a) the lowest of the four minor orders. b) a person ordained in this order.╂[< Latin ōstiārius < ōstium door, opening, related to ōs mouth]
Useful english dictionary. 2012.