The name of the process by which water vapor turns into liquid water is "condensation." This process occurs when water vapor in the air cools and transitions into droplets of liquid water, often forming clouds, fog, or dew. Condensation plays a crucial role in the water cycle, contributing to precipitation. Factors influencing condensation include temperature and pressure changes, along with the amount of moisture present in the air. Understanding condensation is essential in meteorology because it helps explain weather patterns, cloud formation, and the development of various atmospheric phenomena.