ostensorium

noun

ostensorium

noun

1

An ostensory, or monstrance.

In the cemetery, the ostensorium, also known as a monstrance, will mark the grave of a member of the clergy. This medieval device is an altar vessel of the Eucharist.2009, Douglas Keister, Stories in Stone, page 150:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.