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square joint[¦skwer ¦jȯint]
1. In a wood floor, a continuous joint formed by the ends of parallel boards; the joint is perpendicular to the length of the boards.
2. In carpentry, a joint between two timbers which are laid edge to edge without a tongue and groove, dowels, or overlap to bind them; also called a square joint.
3. A continuous vertical straight-line joint formed by the ends of masonry units.