piscina

piscīna ae, f

piscis, a fish-pond , C.: publica, the public fish-pond , L.

piscina
piscīna, ae, f. [piscis], a pond in which fish are kept, a fish-pond. I Lit.: piscinarum genera sun...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
Piscina
·noun A niche near the altar in a church, containing a small basin for rinsing altar vessels. ...

Webster's Dictionary of the English Language