What is defined as any container designed for placement in a grave around a casket or alternative container?

The term that describes a container specifically designed for placement in a grave around a casket or alternative container is known as an outer burial container. This is a broad category that encompasses various types of burial containers that provide support and protection for the casket once it is placed in the ground.

Outer burial containers serve multiple purposes, including preventing the grave from collapsing, protecting the casket from the weight of the soil, and offering a degree of protection from the elements as well as scavengers. They can come as simple grave liners made from concrete or metal, which primarily serve structural purposes, or as more elaborate vaults that offer additional protective features and aesthetic considerations.

Understanding this term is crucial for those in the funeral practice, as it denotes an important component of final disposition that affects not only the casket but also the grave site itself. Other options, such as funeral casket, grave liner, and memorial vault, describe specific types or attributes of burial systems but do not encompass the broader definition provided by the correct answer.