Definitions:

1. Refers to the functional group or radical also known as the cacodyl group. NOUN
   • The cacodyl radical was first investigated by Robert Bunsen, making a milestone in organometallic chemistry.
2. The demethylorsinyl group which functions as a monovalent organoarsenic radical, forming the basis of compounds like cacodyl oxide and cacodyl chloride. NOUN
   • Due to its high reactivity and volatility, the cacodyl radical must be handled with extreme care.

Synonyms:

• arsenic group
• cacodyl
• organometallic radical