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Cat Glossary – F

Glossary of Cat Terms:


Fat: Any of various soft, solid, or semisolid organic compounds constituting the esters of glycerol and fatty acids and their associated organic groups.

FCV: Acronym for Feline Calcivirus, a virus that causes upper respiratory disease

Feline: Of or belonging to the family Felidae, which includes the lions, tigers, jaguars, and wild and domestic cats; felid.

Feline Immunodeficiency Virus: A virus which invades a cat’s DNA and ultimately causes dysfunction of the immune system.

Feline Leukemia Virus: A group of diseases commonly causing cancer and death.

FeLV: See Feline Leukemia Virus

Feral: Having returned to an untamed state from domestication.

Feral-Domestic Hybrid: A hybrid between a wild cat species and a domestic cat.

Fetus: The unborn young of a viviparous vertebrate having a basic structural resemblance to the adult animal.

FIA: Acronym for Feline Infectious Anemia

FIE: Acronym for Feline Infectious Enteritis, also known as panleukopaenia

Fillers: Meant to increase volume, chemicals and other indigestible material that are added to pet food.

FIP: Acronym for feline infectious peritonitis, a highly contagious, often difficult to diagnose disease associated with the feline coronavirus.

FIV: Acronym for feline immunodeficiency virus, a disease usually transmitted by saliva to blood (deep biting wounds).

Fleas: Any of various small, wingless, bloodsucking insects of the order Siphonaptera that have legs adapted for jumping and are parasitic on warm-blooded animals.

Flehmening/Flehmen Reaction: The facial gesture similar to a grimace that a cat makes when it draws air over and stimulates the Jacobsen’s Organ in the mouth.

FLUTD: Acronym for feline lower urinary tract disease, a blanket term referring to a number of conditions in the lower urinary tract such as infection and bladder stones.

Follicle: A crypt or minute cul-de-sac or lacuna, such as the depression in the skin from which the hair emerges.

FPL: Acronym for Feline Panleukopaenia

Fracture: A break, rupture, or crack, especially in bone or cartilage.

Free-Feed: A process allowing a cat open access throughout the day to a food bowl.

Frost Point: Term referring to lilac (lavender) point.

Full Tom: An unneutered male cat.

Fungicide: A chemical substance that destroys or inhibits the growth of fungi.

Fungus: A primitive form of plant life that can be parasitic.

FUS: Acronym for Feline Urological Syndrome. See FLUTD.

FVR: Acronym for Feline Viral Rhinotracheitis, a serious cause of feline respiratory diseases.