valudefekt – sulametalliga toitmise ebapiisavuse tingimustes tardumiskahanemisest tingitud poorsus valandi või valuploki viimasena tarduvates piirkondades (vt tardumiskahanemine), shrinkage related porosity produced within a solidified mass of ingot or casting due to specific volume contraction on solidification and usually appears within the regions that solidify later than the surrounding sections of casting or ingot (see: solidification shrinkage)