1. a person or thing that bonds; something used to join or hold materials together
Usage: common in construction and manufacturing
2. in masonry, a stone or brick laid across the thickness of a wall to bind it together
Usage: technical, construction

Examples

• The construction crew used a strong bonder to attach the tiles to the wall.
• A quality bonder ensures that the composite materials will hold together under stress.
• In traditional brickwork, every fifth course includes bonders to strengthen the structure.
• The epoxy bonder created a permanent seal between the two metal plates.
• Without a proper bonder, the laminate would separate over time.