Ciborium

·noun The coffer or case in which the host is kept; the pyx.

II. Ciborium ·noun A canopy usually standing free and supported on four columns, covering the high altar, or, very rarely, a secondary altar.

ciborium
cĭbōrĭum . ii, n., = κιβώριον, a drinking-cup (made like the large leaves of the Egyptian bean), ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
ciborium
cibōrium ī, n , κιβώριον, a drinking-cup, H. ...

An Elementary Latin Dictionary