An animal not native to the geographical area where it is living.... ↪ Read more

The time when a female animal is fertile and receptive to the male. Also known as a heat period. The time of the estrous cycle during which the bitch is receptive to the male. A stage in the reproductive cycle of the female dog and cat, also known as heat. Period of female's "heat" or maximal sexual... ↪ Read more

A female hormone produced by the ovaries, which results in the onset of estrus. The hormone that makes a female receptive to the male. Female hormone produced by follicles on the ovary.... ↪ Read more

a condition in which stomach contents move backward into the esophagus, i.e., heartburn.... ↪ Read more

An overflow of tears upon the cheeks due to a blockage or narrowing of the tear ducts. Excessive tearing.... ↪ Read more

Environmental Protection Agency. The agency of the federal government which licenses pesticides and herbicides.... ↪ Read more

Enzymes are special proteins produced by cells which cause chemical changes in other substances, but which are not themselves changed in the process. A substance that makes a chemical process faster. For example digestive enzymes break down food to hasten the process of digestion.... ↪ Read more

An inflammation of the intestines.... ↪ Read more

A method to feed an animal in which a tube is placed through the body wall into the intestine, and a nutritious liquid is forced through the tube into the intestine.... ↪ Read more

A long flexible instrument which can be passed into the body to view various structures through the use of fiber optics. A long, flexible lighted tube used to see inside structures.... ↪ Read more

Any degenerative disease of the brain. Causes include liver disease resulting in build up of toxic by products of metabolism, heavy metal (e.g., lead) poisoning, and loss of blood supply.... ↪ Read more

Vomiting. A synonym for vomiting.... ↪ Read more