noun.
any chloride containing two chlorineatoms bound to a single element or radical
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a compound containing two chlorine atoms per molecule
Word Usage
"PVC production requires vinyl chloride monomer (VCM), a dangerous explosive, and creates toxic waste, notably ethylene dichloride (EDC) tars—two things no neighborhood wants."