The BCD is a boot file used by the Win Vista/7 bootloaders to store its entries in. EasyBCD is a tool used to manipulate this file, via a GUI, which previously could only be done by the CLI tool "bcdedit.exe".
BCD is not a term coined by NeoSmart or its developer. It is in fact a term used by Microsoft. It is the term used for the boot loader used in Vista and Win7. You may want to consult with them on the use of the acronyms for the boot loaders as they are the ones that started everyone off using it.
Even the Microsoft applet to modify the boot data is called BCDEdit.exe coming right from Windows.