The word '[[Ouroboros]]' describes the common symbol of a snake devouring its own tail (the [[Greek]] 'ουροβορος' literally means 'tail-devouring'). It is often used as an illustration of [[circular argument]]s, and is also the source of the symbol for [[infinity]], '∞'. | The word '[[Ouroboros]]' describes the common symbol of a snake devouring its own tail (the [[Greek]] 'ουροβορος' literally means 'tail-devouring'). It is often used as an illustration of [[circular argument]]s, and is also the source of the symbol for [[infinity]], '∞'. |