'Session management' in web applications refers to the process of maintaining user sessions, which allows interactions to persist over time. This involves tracking and managing user state, such as logging in, preferences, and activities across multiple pages. Effective session management enhances user experience by ensuring continuity in interactions, regardless of any page reloads or navigation. It often includes mechanisms for authentication, session expiration, and data storage. Implementing secure session management practices is crucial for protecting sensitive user data and preventing issues like unauthorized access or session hijacking.