Meaning of SPLINE in English

SPLINE

( n. )

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.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.