What is the best description of the phrase “the glass ceiling”?

The best description of the glass ceiling would be something that limits what your allowed to do and it's something that you can help. for example as a black person if my name sounds to black I might not be granted a job because I'm black which is something I can't change

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.