Critical Temperature: It is temperature at (and above which) a gas/ vapor cannot be liquified no matter how much pressure is applied to it.

Critical Pressure: It is the pressure applied at critical temperature to liquify the vapor/ gas.

I think both definitions contradict each other. If we cannot liquify a gas at critical temperature, no matter how much pressure we apply, how can we say critical pressure exist? and vice versa.

Can any one elaborate please? #-Link-Snipped-# sir.