Lumpy-jaw is a medical condition that affects cattle. It stems from bacterial infections that cause the jaw to appear swollen and lumpy. There are various synonyms for lumpy-jaw, including actinomycosis, wooden tongue, and big jaw. Actinomycosis is a bacterial disease that affects both humans and animals, leading to the formation of lumps in the jaw or neck region. Wooden tongue, on the other hand, is a bacterial infection that results in the hardening of the tongue, causing difficulty in eating and swallowing. Big jaw also refers to the medical condition characterized by the swelling and deformity of the jaw. These synonyms help to identify and diagnose the disease in cattle and other animals.