Definition: The term "tetramethyldiarsine" is not commonly used in medical or scientific contexts. It may be a chemical name, a specific compound, or a combination of these elements, but it does not provide any information on what the substance is or how it works. In medical terms, tetramethyldiarsine (TMD) is a type of medication that is used to treat conditions such as inflammatory bowel disease (IBD), Crohn's disease (CD