Description Logic is a formal framework used in computer science and artificial intelligence to represent knowledge about the world. It allows for the creation of structured descriptions of concepts and their relationships, enabling machines to reason about the information. This logic is particularly useful in applications like semantic web technologies and ontology development, where it helps in defining and organizing data. By using a set of axioms and rules, Description Logic supports tasks such as classification, consistency checking, and query answering, making it a powerful tool for knowledge representation.