Calicivirus: A serious respiratory disease.

Calico: A coat pattern that is mottled in tones of black, orange, and white.

California Spangled Cat: A large, strong, spotted cat with a somewhat wild appearance as they were bred to look like a small leopard.

Calling: A term used to describe a female cat's behavior (i.e. howling, yowling, screaming) during estrus (ovulation).

Call Name: The name that a cat is called, which is commonly a shortened form of a cat's registered name.

Cameo-Chinchilla: A coat that is shaded or smoked with red or cream tipping.

Carbohydrate: Any of a group of organic compounds that includes sugars, starches, celluloses, and gums and serves as a major energy source in the diet of animals. These compounds are produced by photosynthetic plants and contain only carbon, hydrogen, and oxygen, usually in the ratio 1:2:1.

Cardiomyopathy: A disease or disorder of the heart muscle, especially of unknown or obscure cause.

Carpal Pads: The pads on the wrists of a cat's front legs which provide traction.