Martyrium
A church built over a martyr's tomb or relics. The term may also indicate a church built in honor of a martyr. See Relics; see Reliquary.
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.