sacrarium
Concise Oxford English Dictionary © 2008 Oxford University Press:
sacrarium /səˈkrɛːrɪəm/
▶noun (pl. sacraria /-rɪə/)
- 1 the sanctuary of a church.
- 2 (in the Roman Catholic Church) a piscina.
- 3 (in the ancient Roman world) a shrine.
– origin L., from sacer, sacr- ‘holy’.
'sacrarium' also found in these Oxford entries:

