Recursion (adjective: recursive) occurs when a thing is defined in terms of itself or of its type. Recursion is used in a variety of disciplines ranging from linguistics to logic. The most common application of recursion is in mathematics and computer science, where a function being defined is applied within its own definition. While this apparently defines an infinite number of instances (function values), it is often done in such a way that no infinite loop or infinite chain of references ("crock recursion") can occur.
Source: Recursion (wikipedia.org)
It is perhaps fitting that the ancient ouroboros marks the beginning – and end – of Never Ending Stories, a major exhibition currently showing at Germany’s Kunstmuseum Wolfsburg.
recursion cyclic loop