Adult or coetaneous tridermoma is a medical condition characterized by the presence of a tumor on the skin that affects individuals who have reached adulthood. While there might not be direct synonyms for this specific term, alternative words can describe similar concepts. We can use terms such as cutaneous neoplasm, dermal tumor, or skin growth to denote growths or tumors that occur on the skin in adults. These synonyms can help convey the same idea of an abnormal mass in the skin, providing a broader vocabulary range when discussing the condition of adult or coetaneous tridermoma.