What does it mean to be C ? Why its called C programming?

There is no significant meaning of the letter C, its just a name.About C is given below-
C language is a very old programming language designed by Dennis Ritchie about 45 years ago. Its a general purpose, imperative procedural programming language. The importance of C is that it was designed to be compiled using a very straightforward compiler, to provide low-level to access to memory. The compiler compiles code in such a way that requires minimal run-time support.
You can do some pretty impressive things using the C language. Although its 45 years old, C supports advanced concepts like recursion.
Learning C has a lot of perks. Almost all the prominent programming languages that are used today (even Java) has a C like syntax. Meaning it derives much of its syntax from C. Some more languages that has a C like syntax: C#, C++, Python, PHP, Objective-C, JavaScript etc.