Long thin piece of metal or wood.

A rectangular piece that fits 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 flexible strip of metal or other material, that may be bent into a curve and used in a similar manner to a ruler to draw smooth curves between points.

To smooth (a curve or surface) by means of a spline.

To fit with a spline.

To fasten to or together with a spline.