Mercurial cachexia, also known as mercury poisoning, refers to the severe condition resulting from excessive exposure to mercury. Synonyms for this term include mercurialism, mercurial intoxication, and hydrargyria. Mercurialism reflects the broader impacts caused by mercury toxicity, affecting various bodily systems and potentially leading to symptoms such as tremors, memory loss, neurological disorders, and even death in extreme cases. Mercurial intoxication emphasizes the harmful effects of mercury on the body, highlighting how it poisons and impairs bodily functions. Lastly, hydrargyria combines the Greek words for mercury (hydōr) and dry (argyros) to describe the drying effects of the metal, underlining its detrimental impact on tissues and overall health.