A syringe is a medical device used for injecting fluids into the body or drawing fluids from it. It consists of a barrel, a plunger, and a needle or other tip. Syringes are commonly used for administering medications, vaccines, drawing blood, or other medical procedures that require precise control of liquid volumes. They come in various sizes and types depending on the specific medical needs. Syringes are typically single-use to maintain hygiene and prevent infections.