Organochloride

Part of speech: noun

Definitions

1. A category of chemical substances that include chlorine and carbon, commonly involved in environmental research and various industrial processes
2. Chemicals composed of carbon and chlorine, often found in pesticides and used for commercial purposes
3. A group of chemical compounds containing both chlorine and carbon atoms, frequently utilized in agriculture and studied for their ecological impact

Etymology: Organochloride is a plain compound: "organo-" joined to "chloride." The "organo-" element comes from "organic," tracing back through Greek "organon," meaning "tool" or "instrument," and in chemistry it marks substances built around carbon chains. "Chloride" is itself a blend of "chlorine," from Greek "khlōrós," meaning "pale green" or "greenish yellow," the colour of the gas when it was first identified, and the "-ide" ending used for binary compounds of an element. Put together, the word names a family of carbon-based molecules that contain chlorine atoms. Chemists needed a label that separated these compounds from simple inorganic chlorides such as table salt, which is why the prefix matters: it signals that carbon is part of the structure.