Wiktionary
isocyanide
n. 1 (context chemistry English) The isomer HN+C- of hydrocyanic acid HCN. 2 (context chemistry English) Any of its hydrocarbyl derivatives RNC.
Wikipedia
Isocyanide
An isocyanide (also called isonitrile or carbylamine) is an organic compound with the functional group -N≡C. It is the isomer of the related cyanide (-C≡N), hence the prefix iso. The organic fragment is connected to the isocyanide group via the nitrogen atom, not via the carbon. They are used as building blocks for the synthesis of other compounds.
Usage examples of "isocyanide".
In our laboratories our scientists had discovered a gas that was more potent than even cacodyl isocyanide the gas that had been discovered some fifteen years earlier and which destroyed any life it touched.