Meaning: A coral reef off the southern coast of Florida. Classified under: Nouns denoting natural objects (not man-made) Synonyms: cay; Florida key; key. Hypernyms (cay is a kind of...): coral reef (a reef consisting of coral consolidated into limestone) Holonyms (cay is a part of...):
Causes. Fever occurs when an area in your brain called the hypothalamus (hi-poe-THAL-uh-muhs) â also known as your body's thermostat â shifts the set point of your normal body temperature upward.
Most people think a normal body temperature is an oral temperature (by mouth) of 37Â°C (98.6Â°F) . This is an average of normal body temperatures. Your normal temperature may actually be 0.6Â°C (1Â°F) or more above or below this. fever may occur as a reaction to: 1  Infection. 2  This is the most common cause of a fever. 3  Infections may affect the whole body or one body part. 4  Medicines. 5  These include antibiotics, narcotics, antihistamines, and many others. 6  This is called a drug fever.. 7  Medicines like antibiotics raise the body temperature directly.