interpolant

“Then there is a sentence φ of L ˆ© M which is true in all models of T and false in all models of U. (This sentence φ is called the interpolant.)”

First-order Model Theory

“The vertically filtered station data from each section are interpolated onto an evenly spaced latitudinal or longitudinal grid depending on section orientation at 0.033° spacing using a shape-preserving piecewise cubic Hermite interpolant at each pressure level.”

Recyclable AbathyThermograph Instruments « Climate Audit