Wiktionary
hexachlorobenzene
n. (context organic compound English) A polychlorinated hydrocarbon, C6Cl6, used as a fungicide in the treatment of bunt
Wikipedia
Hexachlorobenzene
Hexachlorobenzene, or perchlorobenzene, is an organochloride with the molecular formula CCl. It is a fungicide formerly used as a seed treatment, especially on wheat to control the fungal disease bunt. It has been banned globally under the Stockholm Convention on persistent organic pollutants.
Usage examples of "hexachlorobenzene".
Our insecticide of choice is hexachlorobenzene, which is easier for us to produce than the DDT that Grantville is making.
We could indeed sell you, right now, hexachlorobenzene, as well as plenty of bleaching powder that could be used to prevent typhoid and other water-borne diseases.