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Cat Glossary – I

Glossary of Cat Terms:


ICF: Acronym for Independent Cat Federation.

Icteric: Affected by jaundice which causes yellowing of the skin and the whites of the eyes, often caused by liver failure.

Idiopathic: Of, relating to, or designating a disease having no known cause.

Immune Response: The body’s reaction to infection.

Immunization: To produce immunity in, as by inoculation.

Innate: Possessed at birth; inborn

Inbreeding: The mating of two closely related cats of the same breed.

Incontinence: The inability to control excretory functions.

Infertile: Not fertile; unproductive or barren.

Inflammation: A localized protective reaction of tissue to irritation, injury, or infection, characterized by pain, redness, swelling, and sometimes loss of function.

Inherent: Existing as an essential constituent or characteristic; intrinsic.

Inherited: To receive (a characteristic) from one’s parents by genetic transmission.

Injection: Something that is injected, especially a dose of liquid medicine injected into the body.

Instinct: An inborn pattern of behavior that is characteristic of a species and is often a response to specific environmental stimuli: the spawning instinct in salmon; altruistic instincts in social animals.

Intact: Unneutered, unspayed, unaltered.

Internal Parasites: One celled protozoan, larvae and worms that survive by living off the host animal’s meals or blood.