(ËstÉr tÉr) n. 1. a person or thing that starts. 2. a person who gives the signal to begin, as for a race or the running of a train, elevator, etc. 3. a device that starts an internal-combustion engine without a need for cranking by hand. 4. a person or thing that starts in a race or contest.
Body temperature may be abnormal due to fever (high temperature) or hypothermia (low temperature). A fever is indicated when body temperature rises about one degree or more over the normal temperature of 98.6 degrees Fahrenheit, according to the American Academy of Family Physicians. Hypothermia is defined as a drop in body temperature below 95 degrees Fahrenheit.
Body temperature norms. Normal body temperature varies by person, age, activity, and time of day. The average normal body temperature is generally accepted as 98.6Â°F (37Â°C). Some studies have shown that the normal body temperature can have a wide range, from 97Â°F (36.1Â°C) to 99Â°F (37.2Â°C). A temperature over 100.4Â°F (38Â°C) most often means you have a fever caused by an infection or illness.