The term "auriculoventricular" refers to the connection between the atria and ventricles in the heart. However, there are several synonyms that can be used to describe this same connection. One such synonym is "AV node", which is short for atrioventricular node. Another term that can be used is "AV junction", which refers to the electrical pathways between the atria and ventricles. Additionally, the term "bundle of His" can be used to describe the specific muscular fibers that conduct electrical impulses through the heart. Finally, the term "AV conduction system" can be used to describe the entire system of electrical connections between the atria and ventricles.