spline

Any of a series of projections on a shaft that fit into slots on a corresponding shaft, enabling both to rotate together.

The groove or slot for such a projection.

A flexible piece of wood, hard rubber, or metal used in drawing curves.

A wooden or metal strip; a slat.

To fit with a spline.

In machinery, a rectangular piece or key fitting into a groove in the hub of a wheel, and a similar groove in a shaft, so that, while the wheel may slide endwise on the shaft, both must revolve together. See cut under paint-mill.

A flexible strip of wood or hard rubber used by draftsmen in laying out broad sweeping curves, especially in railroad work.

In building, a thin piece of board, especially when used under certain conditions, as in light and thin ceiling, the filling of large panels like the backs of seats in a church, or the curved outer shell of the centering for an arch.

A rectangular piece fitting grooves like key seats in a hub and a shaft, so that while the one may slide endwise on the other, both must revolve together; a feather; also, sometimes, a groove to receive such a rectangular piece.