An embedded database is a database management system that is tightly integrated into an application, allowing the application to manage its own data without needing a separate database server. This type of database is often used in software applications, mobile apps, and devices where resources are limited, providing efficient data storage and retrieval. Unlike traditional databases that require a dedicated server, embedded databases run within the application process itself. They are designed for simplicity and ease of use, making them ideal for scenarios where performance and low overhead are critical, such as in IoT devices or mobile applications.