the ability of a material to deform plastically before fracturing, typically measured by elongation or reduction in area in a tensile test (see: percent elongation, reduction in area; compare: plasticity, malleability), materjali plastse deformeerumise võime kuni purunemiseni, mida tavaliselt hinnatakse tõmbekatsel suhtelise pikenemisena või katkeahenemisena (vt suhteline pikenemine, katkeahenemine; vrd plastsus, survedeformeeritavus)