contaminant

1. N-COUNT A contaminant is something that contaminates a substance such as water or food. 污染物[正式] [usu pl]

Contaminants found in poultry will also be found in their eggs. 在家禽里發(fā)現(xiàn)的污染物，也將會在它們下的蛋里發(fā)現(xiàn)。