Can you explain the meaning of the letter 'B' in the name of the data structure B-Tree?

The letter "B" in the name of the data structure B-Tree is usually interpreted as "Balanced". This means that a B-tree is a balanced tree where all leaf nodes are at the same level, ensuring efficient search, insertion, and deletion operations with guaranteed logarithmic complexity. There is also an opinion that "B" can stand for "Broad", as B-tree nodes can have many children, which reduces the tree's height and optimizes input-output operations, especially in databases and file systems.