[splahyn] 
noun, verb, splined, splin⋅ing.| 1. | a long, narrow, thin strip of wood, metal, etc.; slat. |
| 2. | a long, flexible strip of wood or the like, used in drawing curves. |
| 3. | Machinery.
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| 4. | Building Trades. a thin strip of material inserted into the edges of two boards, acoustic tiles, etc., to make a butt joint between them; a feather. |
| 5. | Mathematics, Engineering. a function that has specified values at a finite number of points and consists of segments of polynomial functions joined smoothly at these points, enabling it to be used for approximation and interpolation of functions. |
| 6. | to provide with a spline or key. |
| 7. | to provide with a keyway. |
| spline (splīn) n.
[Origin unknown.] |
