The entire physical universe is called__________?
Cosmos is the entire physical universe.
The entire physical universe is called the cosmos or the universe.
To find this answer, you could try using search engines like Google or Bing and enter a query such as "What is the term for the entire physical universe?" This will quickly provide you with the answer. Additionally, you could consult reliable sources like scientific encyclopedias or astronomy textbooks, where you would find information about the cosmos or universe as the term used to describe the entirety of physical existence.