Answer:
An anthropoid coffin is a coffin shaped like a person. Also knwon as sarcophagus.
Eplanation:
The term sarcophagus itself refers to a large box or coffin of rectangular shape. The generalization of the term led to the name of sarcophagus also being given to the coffin of human form (anthropomorphic), painted wood (or carton), where the mummy was kept. Popularly, the mummy (embalmed and bandaged body) is also referred to as the anthropomorphic sarcophagus. The sarcophagus is thus the term used to define the coffin where the mummy was placed. Sarcophagus and coffin, although they may cause confusion, both have the same function, guarding and protecting the bodies of the dead. In terms of form and decoration, both sarcophagi and coffins have the same iconographic and stylistic repertoire, so any distinction can always be merely artificial and confusing.