What is another word for simple closed curve?
Pronunciation: [sˈɪmpə͡l klˈə͡ʊzd kˈɜːv] (IPA) 
A simple closed curve refers to a curved shape that is continuous, has no self-intersections, and i.e. the beginning point and ending point meet. There are several synonyms for a simple closed curve such as a loop, a closed loop, a closed path, and a closed curve. Other terms for the same shape include Jordan curve, planar curve, and a closed, non-intersecting curve. Additionally, a simple closed curve can be described as a basic geometric shape such as a circle, an ellipse, or a polygon. In mathematical terms, a simple closed curve is a two-dimensional object that has a finite length and encloses an area. Overall, there are many words to describe this fundamental shape, each with its own nuance and emphasis.
