The «temperature» of a gas (if you must use a compound term) is a measure of the total kinetic energy of the molecules in the volume of gas being measured. (wattsupwiththat.com)
When we want to specify the total kinetic energy of a molecule, we need to account for all 3 forms of it. (wattsupwiththat.com)
It means that energy transfer is dominated by collision and the distribution of kinetic energy of the molecules follows the Maxwell - Boltzmann distribution. (scienceofdoom.com)