This is what people normally call a "bank". The term "commercial" was used to distinguish it from an Investment Bank. Since the two genres of banks no longer have to be separate companies, some have used the term "commercial bank" to refer to banks which focus mainly on companies.
Banking licenses are granted by bank regulatory authorities and provide rights to conduct the most fundamental banking services such as accepting deposits and making loans.
Commercialbank, is the term used for a normal bank to distinguish it from an investment bank.
Bank reserves are typically kept in the form of a deposit with a central bank.
The term "commercial" was used to distinguish it from an investment bank.
Since the two genres of banks no longer have to be separate companies, some have used the term "commercialbank" to refer to banks which focus mainly on companies.