Hydrargyophobia is a fear of mercury which may occur in people who are exposed to it regularly or who have experienced its toxic effects. However, there are some synonyms that can be used to describe this condition. One such synonym is mercuriphobia, which means a fear of mercury or its effects on the body. Another synonym is mercurophobia, which also refers to the fear of mercury. Some people may also use the term mercurialism to describe the symptoms associated with excessive exposure to mercury. Overall, these synonyms can help individuals better understand the fear and symptoms associated with hydrargyophobia.