Luminescence exhibited by a substance on being moderately heated. It is shown esp. by certain substances that have been exposed to the action of light or to X-rays.
Phenomenon exhibited in certain minerals that they give off light, like a glow, when heated. Can only be observed in a dark area. Thermoluminescent is term used to describe minerals that emit light after being heated.
Is it right for me to call this a dating method?] A method of dating that measures the energy given off from the breakdown of radioactive elements. This energy is trapped in pottery and given off as light. Older objects give off more light.