Sorry to jump in here.

The word "adiabatic" comes out of the Greek word "adiabatos". Adiabatos means "impassable."

In thermodynamics, an adiabatic process refers to a process in which there is no heat exchange (a system does not receive or lose heat).

The temperature can still change in an adiabatic process. No heat exchange does not necessarily mean there is no temperature change as temperature can still be changed by changing the pressure and volume of the system.

A Carnot cycle consists of two adiabatic processes and two isothermal processes. An isothermal process is a process in which temperature does not change.