What is an exuberant morbid outgrowth upon any part, especially upon the valves of the heart. Vegetation of salts (Old Chem.), a crystalline growth of an arborescent form called?

vegetation — (Med.) An exuberant morbid outgrowth upon any part, especially upon the valves of the heart. Vegetation of salts (Old Chem.), a crystalline growth of an arborescent form. (Webster's 1913.)

Sources