This little goat is in a pen. noun. The definition of a pen is a small yard or animal enclosure, or an tool used to draw or write with ink. An example of a pen is a petting zoo. An example of a pen is a ball point.
If you are referring to the internal temperature of the human body, studies show most bodies can only survive up to 108 degrees Fahrenheit, or 42 degrees Celcius, as the proteins inside the body begin to die at around 105F.
Georgia State University reports the human body must maintain a temperature between 98 and 100 degrees Fahrenheit to work properly; however, due to outside influences or the consumption of certain drugs, the body is not always able to maintain this temperature.