A "384-well" plate is a type of laboratory tool used primarily in biological and chemical research. It features 384 small wells arranged in a grid format, allowing scientists to conduct multiple experiments simultaneously. This design increases efficiency and reduces the amount of reagents needed for testing. These plates are commonly used in applications such as high-throughput screening, where researchers test many samples at once to identify potential drug candidates or study biological interactions. The compact size of the 384-well plate makes it suitable for automated systems, enhancing the speed and accuracy of experiments.