Definitions

1. noun

A type of triangle or a term used to describe a specific topological feature in mathematics, particularly in the study of non-orientable surfaces, named after Lionel Penrose.

“The researcher studied the Penrose triangle in her mathematics project.”

2. proper noun

A reference to the family name or a specific individual, such as Lionel Penrose or Roger Penrose.

“The Penrose twins are famous for their unique abilities.”