The term 'Egyptian Bull Sacred' refers to the APIS bull, a deity in ancient Egyptian religion. The APIS bull was worshipped as a manifestation of the god Ptah and was seen as a symbol of fertility and strength. It was believed that the APIS bull was the living embodiment of Ptah and was venerated as a sacred animal. The APIS bull was mummified and buried in a special tomb in the city of Memphis. The APIS bull was an important part of ancient Egyptian culture and was seen as a symbol of power and prosperity.