Backjoint
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backjoint — ˈ ̷ ̷ˌ ̷ ̷ noun : a rabbet or chase in masonry left to receive a permanent slab or other filling … Useful english dictionary
backjoint — ˈ ̷ ̷ˌ ̷ ̷ noun : a rabbet or chase in masonry left to receive a permanent slab or other filling … Useful english dictionary