ristlõike ahenemine
tõmbekatsekeha/-teimiku ristlõike algpindala ja vähima ristlõikepindala vahe (vt suhteline ahenemine, katkeahenemine; vrd pikenemine), the difference between the original cross-sectional area and the smallest area of the tensile specimen (see: reduction of area, percent reduction of area; compare: elongation)
