What is the uppermost part of the casket called that extends from rim to rim?

The uppermost part of the casket that extends from rim to rim is called the crown. This term specifically refers to the curved or flat section at the top of a casket that provides its overall shape and structure. It serves both aesthetic and functional purposes, contributing to the casket's appearance while also protecting the interior content.

Understanding the specific terminology used in funerary practices is essential, as it reflects the design and significance of the casket components. The crown plays a significant role in defining the overall style of the casket, such as whether it has a traditional look with a raised crown or a more contemporary flat design. Recognizing the distinct function and form of the crown is vital for anyone studying the art and practice of funerary arrangements.