BACKJOINT
Source: 567
Back″joint′ (�), n. [[Back, a. or adv. + joint.]] (Arch.) A rebate or chase in masonry left to receive a permanent slab or other filling.
Source: 567
Back″joint′ (�), n. [[Back, a. or adv. + joint.]] (Arch.) A rebate or chase in masonry left to receive a permanent slab or other filling.