A citrus juicer is a kitchen appliance designed to extract juice from citrus fruits like oranges, lemons, and limes. It typically features a cone-shaped reamer that presses down on the fruit, allowing the juice to flow into a container. Some models are manual, requiring hand pressure, while others are electric for quicker extraction. These juicers are popular for making fresh juice, which is often used in beverages, dressings, and marinades. Using a citrus juicer can enhance the flavor of dishes and provide a rich source of vitamin C, making it a valuable tool for health-conscious individuals.