| Altar 1. (n.) A raised structure on which sacrifices are offered or incense burned to a deity (as a square or oblong erection of stone or wood). 2. (n.) In the Christian church, a construction of stone, wood, or other material for the celebration of the Holy Eucharist; the communion table. Thesaurus Entries Communion table, altar carpet, altar desk, altar facing, altar of prothesis, altar rail, altar side, altar slab, altar stair, altar stone, altarpiece, ancona, bomos, chancel table, credence, eschara, frontal, gradin, hestia, holy table, mensal, missal stand, predella, prothesis, retable, retablo, rood altar, scrobis, superaltar |