Definition of "ostensorium" [‖Os•ten•so•ri•um]

• Roman Catholic Church See monstrance. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Both the name ostensorium and the kindred word monstrance"
• "It is, in fact, an ostensorium constructed by Rove to drain the energy from the wider race."
• "A. Benediction of the Blessed Sacrament is an act of divine worship in which the Blessed Sacrament, placed in the ostensorium, is exposed for the adoration of the people and is lifted up to bless them."