Final answer:
A Data Warehouse is a centralized repository for data that has been cleaned, transformed, and structured for analysis, making it crucial for business intelligence.
Step-by-step explanation:
A central source of data that has been cleaned, transformed, and cataloged so that it can be used for business analysis, market research, and decision support is called a Data Warehouse. This type of system is designed to consolidate large volumes of data from multiple sources, making it easier for organizations to analyze and make informed decisions. Unlike databases that focus on transaction processing, a Data Warehouse is optimized for data analysis and query processing.