Backjoint

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Backjoint băk"joint` (Arch) A rebate or chase in masonry left to receive a permanent slab or other filling.
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Century Dictionary and Cyclopedia
    • n backjoint In masonry, a rebate such as that made on the inner side of a chim-neypiece to receive a slip.
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Etymology

Webster's Revised Unabridged Dictionary
Back, a. or adv. + joint,