For sure, it's a javascript library. But about being a framework or not,I just think it's not a framework. Have a look on wikipedia definition of software-framework:
It is a collection of software libraries providing a defined
application programming interface.
And jQuery is just a single library. After that it says:
Frameworks contain key distinguishing features that separate them from normal libraries:
- inversion of control - In a framework, unlike in libraries or normal user applications, the overall program's flow of control is not dictated by the caller, but by the framework.
So, I think it's not a framework.