👉 In the context of mathematics, "exuccous" refers to a mathematical concept that is often associated with the properties and behavior of irrational numbers. Specifically, it can be defined as: An irrational number is one whose decimal expansion either goes on forever without repeating or has a finite number of digits. So, in essence, an exuccous number would have a very long repeating pattern without any gaps or repeats, which makes them particularly difficult to approximate with rational numbers like fractions and decimals.