1. thin strips of wood or metal used to hold parts together or fill gaps
Usage: carpentry; construction
2. mathematical curves used in computer graphics and engineering to create smooth lines through data points
Usage: mathematics; computer graphics
3. ridged shafts that fit into grooves to transmit rotational motion between mechanical parts
Usage: mechanical engineering

Examples

• The carpenter inserted wooden splines to strengthen the joint.
• Metal splines were used to connect the two sections of flooring.
• The software uses splines to create smooth animation curves.
• Engineers rely on splines to model complex surface shapes.
• The transmission uses splines to transfer power from the engine.
• CAD programs generate splines to interpolate between control points.