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.
a.
any of a series of uniformly spaced ridges on a shaft, parallel to its axis and fitting inside corresponding grooves in the hub of a gear, etc., to transmit torque.
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.
any one of a series of narrow keys (external splines) formed longitudinally around the circumference of a shaft that fit into corresponding grooves (internal splines) in a mating part: used to prevent movement between two parts, esp in transmitting torque
2.
a long narrow strip of wood, metal, etc; slat
3.
a thin narrow strip made of wood, metal, or plastic fitted into a groove in the edge of a board, tile, etc, to connect it to another
—vb
4.
(tr) to provide (a shaft, part, etc) with splines
[C18: East Anglian dialect; perhaps related to Old English splin spindle; see splint]