It is true.
Average
The average kinetic energy of a particle is called its temperature. Temperature is a measure of the average kinetic energy of the particles within a substance.
temperature
temperature is the average kinetic energy of a particle
temperature
The definition of temperature is the average kinetic energy of a molecule/solid/whatever
Temperature is the average kinetic energy of each individual particle inside an object.
A measure of the average kinetic energy of the individual particles in an object is called temperature.
ConductionMeasure of the average kinetic energy of the atoms in an object
Matter is made up of particles (atoms and molecules); temperature is closely related to the average kinetic energy per particle. More precisely, the average kinetic energy per particle per degree of freedom.
The average amount of motion of each particle in a substance is known as its temperature. Temperature is a measure of the average kinetic energy of the particles in a substance, where higher temperatures indicate that particles have more kinetic energy and are moving faster.
The average amount of energy of motion of each particle of a substance is called kinetic energy. It is related to the speed and mass of the particles.