[mahr-tir-ee-uh m]

noun, plural mar·tyr·i·a [mahr-tir-ee-uh] /mɑrˈtɪr i ə/.

a place where the relics of a martyr are kept.
a church built above the tomb of a martyr or in honor of a martyr.

Origin of martyrium

From Late Latin, dating back to 1705–15; see origin at martyry Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for martyrium

Historical Examples of martyrium