Definition: Avicolous is a term used in veterinary medicine to describe a condition where a dog's jaw and teeth are so close together that they can move freely in one direction or the other. This condition can be caused by several factors such as genetics, trauma, or an infection. In dogs with avicolous jaws, there is usually no need for any special treatment or surgery. However, if the jaw and teeth become too crowded, it may require some form of orthodontic treatment to straighten