A toxic solid polychlorinated camphene, having the approximate composition C10H10Cl8, used as an insecticide. It was banned from use in the United States in 1990 because it is a suspected carcinogen.
[TOX(I)- + (C)A(M)PHENE.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.