Roman Catholic Church A receptacle when the host is held. Also known as ostensorium.
An ornamental, frequently valuable receptacle, either open or with a transparent address, in which the consecrated number is placed for veneration.
A transparent pyx, when the consecrated host is exposed to view.
In the Roman Catholic Church, originally, any receptacle for which sacred relics were held up to look at; after the fourteenth century, limited to the transparent or glass-faced shrine where consecrated host is provided for adoration of the people, either while being carried in procession or when exposed in the altar.
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(Roman Catholic Church) a vessel (usually of gold or gold) where the consecrated Host is subjected for adoration