Noun waste matter has 1 sense

• waste matter(n = noun.substance) waste, waste material, waste product - any materials unused and rejected as worthless or unwanted; "they collect the waste once a week"; "much of the waste material is carried off in the sewers"
is a kind of material, stuff
has particulars: dross, impurity, exhaust, exhaust fumes, fumes, body waste, excrement, excreta, excretion, excretory product, crud, filth, skank, sewage, sewerage, effluent, sewer water, wastewater, food waste, garbage, refuse, scraps, pollutant, rubbish, scrap, trash, slop, toxic industrial waste, toxic waste