|te.trə|klōr(ˌ)ō, -ȯ(ˌ)rō+ noun
Etymology: International Scientific Vocabulary tetrachlor- + ethylene
: a heavy mobile nonflammable liquid compound CCl 2 . CCl 2 made in various ways (as by treating penta-chloro-ethane with lime or by heating carbon tetrachloride) and used chiefly in dry cleaning and dry-cleaning soaps, in degreasing metals, as a solvent for rubber, tar, and other organic materials, and as an anthelmintic — called also perchloroethylene