Thyrotoxic is a term used to describe a state of increased thyroid hormone production in the body. Other synonyms for thyrotoxic include hyperthyroid, overactive thyroid, and thyroxicosis. Hyperthyroidism refers to the condition where the thyroid gland produces an excessive amount of thyroid hormones, leading to a range of symptoms. Overactive thyroid is another term often used by medical professionals to describe this condition. Thyroxicosis, on the other hand, refers to the overall clinical state of hyperthyroidism, which can be caused by different conditions such as Graves' disease, toxic multinodular goiter, or other thyroid ailments. In summary, these synonyms are all related to an increased production of thyroid hormone in the body, that can lead to various symptoms and health complications.