Definition & Meaning RDBMS

RDBMS (Relational Database Management System) Definition

Relational Database Management System (RDBMS)

What is RDBMS (relational database management system)?

A relational database management system (RDBMS) is a collection of capabilities that enhance basic database operations for business needs.

What is RDBMS Relational Database? Webopedia Definition

What does RDBMS mean? - Banking - Definition... - Definition Meaning

database - What is the difference between DBMS and RDBMS?

After reading some answers on different websites I am confused now. So, it would be helpful to mention the key difference between DBMS and RDBMS and any relation between them.

RDBMS - definition of RDBMS by The Free Dictionary

Relational database management system - Wikipedia

A relational database management system (RDBMS) is a database management system (DBMS) based on the relational model of data.