The immunity that is the result of either special lymphocytes directly killing the foreign invader, or lymphocytes (T cells) releasing special chemicals which activate macrophages to kill the invader. Compare with 'humoral immunity'.... ↪ Read more

A blind sac that opens into the colon of many animals.... ↪ Read more

A cloudiness of the lens of the eye, reducing vision and giving the eye a pearly appearance. Any opacity of the lens from a dot to complete lens opacification. Abnormal cloudiness of the lens of the eye.... ↪ Read more

Animal which harbors an infectious organism, such as a virus, bacteria or parasite. The animal does not appear ill but can still transmit the organism to other animals by direct contact or releasing the organisms (bacteria, protozoa, viruses) into the environment in the stool, urine, respiratory... ↪ Read more

An animal whose natural diet includes meat.... ↪ Read more

Diseases of the heart muscle; does not include diseases of the valves of the heart or congenital defects. A disease of the heart muscle. Weak heart muscle cannot pump blood normally.... ↪ Read more

A substance which causes cancer.... ↪ Read more

Compounds made up of chains of sugar units. Simple carbohydrates include table sugar (sucrose), milk sugar (lactose), and fruit sugar (fructose). Complex carbohydrates are very long chains held together by bonds that may not be digestible in the stomach and intestine of a carnivore. Starch is a... ↪ Read more

A certain genus of yeast which can cause disease in humans and animals; an infection with Candida is called candidiasis.... ↪ Read more

The unit of measurement of energy derived from digested food. Fat contains about twice as many calories per gram as protein or carbohydrate.... ↪ Read more

The hardening of tissue through the influx of calcium, usually as a result of chronic inflammation.... ↪ Read more

Extreme weight loss. Very thin, a synonym for emaciation.... ↪ Read more