1. dust contamination(n = noun.state) - state of being contaminated with dust;
is a kind of contamination, taint
2. dust contamination(n = noun.act) - the act of contaminating with dust particles;
is a kind of contamination, pollution
angel dust, bite the dust, chalk dust, contamination, copple dust, cosmic dust, diamond dust, dust, dust bag, dust bowl, dust cloud, dust coat, dust cover, dust devil, dust jacket, dust mop, dust sheet, dust storm, dust wrapper, gold dust, hell dust, interplanetary dust, radioactive dust