The term "constitutional" has several meanings, depending on its context.
In general terms, it refers to something that is in accordance with or follows the rules and principles laid down by a constitution, whether it be a national constitution or an organization's governing document. For example, if a government action is taken within the limits set out in their country’s constitution, it would be described as "constitutional."
In another context, "constitutional" can refer to something that is typical or characteristic of someone or something. This usage often applies when describing behavior or habits that are considered normal for a particular person or group. For example, if someone has a constitutional right to free speech, it means they have the right to express their opinions and ideas without fear of censorship or punishment by the government.
In medicine, "constitutional" refers to symptoms involving general body functions such as temperature regulation, digestion, and elimination. These types of symptoms are often difficult to diagnose because they can be caused by a variety of conditions.