A pulper is a machine that is commonly used to turn paper into pulp for recycling. There are several synonyms for this word, including beater, disintegrator, and blender. A beater is a machine that beats fibers together, while a disintegrator is a machine that breaks down materials into small pieces. A blender is a machine that mixes and grinds different materials together. Other synonyms for pulper include macerator, masher, and grinder. All of these machines are used for breaking down materials, but each has its own unique features and uses that contribute to the recycling and production of various materials.