A raised shelf or ledge behind the altar. The altar cross, altar lights, and vases of flowers may be placed on it. The tabernacle may also be placed on it. See Retable.
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.