Flagon
A large vessel with handle and spout, shaped like a pitcher. It is used as a container for wine or water at the eucharist. It may be made of metal, pottery, or glass. The Prayer Book directs that only one chalice is to be on the altar during the Great Thanksgiving. This emphasizes the symbolism of the common cup. If more wine is needed, a flagon of wine may be consecrated at the eucharist. Additional chalices may be filled from the flagon after the breaking of the bread (BCP, p. 407).
Glossary definitions provided courtesy of Church Publishing Incorporated, New York, NY,(All Rights reserved) from “An Episcopal Dictionary of the Church, A User Friendly Reference for Episcopalians,” Don S. Armentrout and Robert Boak Slocum, editors.