Symbolism The Uraeus is a symbol for the goddess Wadjet. She was one of the earliest Egyptian deities and was often depicted as a cobra, as she is the serpent goddess. The center of her cult was in Per-Wadjet, later called Buto by the Greeks. She became the patroness of the Nile Delta and the protector of all of Lower Egypt.
Rigor is something strict, severe or demanding. 1  Harsh and strict treatment in the military for cadets is an example of rigor. 2  Freezing weather and ice are examples of the rigors of winter.  Difficult and challenging academic courses are an example of academic rigor.
What Is Rigor Mortis. Rigor mortis is the medical term that is used to describe the hardening of body muscles after death. It's the result of the body's loss of adenosine triphosphate (or ATP), which is a substance that gives energy to the muscles. Rigor mortis is a valuable tool to any death investigation since it can narrow down the timeframe of death. Another term for rigor mortis is postmortem rigidity.