from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A chlorinated hydrocarbon, C12H8Cl6O, used as an insecticide and in mothproofing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A cyclodiene insecticide, related to aldrin, that is a persistent organic pollutant.
From Diel(s-Al)d(e)r (reaction), after Otto Paul Hermann Diels and Kurt Alder.(American Heritage® Dictionary of the English Language, Fourth Edition)