materjali omadus aeglaselt plastselt deformeeruda temperatuuril üle 0,5 Ts voolepiirist väiksema pinge toimel (vt roome; vrd madalatemperatuurne roome), time-dependent plastic deformation that occurs at a temperature over 0.5 Tm at constant stress lower than the yield stress (see: creep; compare: low-temperature creep)