ˌantə̇ˈmensēˌän, -tē-, -ōn, -_ən noun
or an·ti·men·si·um -sēəm ; or an·ti·mins -ˌminz ; or an·ti·min·si·on -ˈminsēˌän, -ōn, -_ən
( plural antimensia or antimin·sia -sēə)
Etymology: Medieval Latin antimensium, from Middle Greek antiminsion, antimēsion, probably from Greek anti- anti- (I) + Latin mensa table + Greek -ion -ium — more at mensa
Eastern Church : a consecrated piece of silk or linen cloth containing relics consecrated by a bishop and kept on the altar