Final answer:
NoSQL stands for Not Only SQL. It is a database management system that is different from traditional relational databases as it provides flexible data models and can handle large amounts of unstructured data.
Step-by-step explanation:
The acronym NoSQL stands for Not Only SQL. It is a term used to describe a database management system that is different from traditional relational databases, which use Structured Query Language (SQL) to interact with the data. NoSQL databases are schema-less and provide flexible data models, making them suitable for handling large amounts of unstructured data.