Luminescent \Lu`mi*nes"cent\, a. [L. luminare to illuminate + -escent.]

(Physics) Shining with a light due to any of the various causes which produce luminescence.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Thermoluminescence \Ther`mo*lu`mi*nes"cence\, n. (Physics) 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 the cathode rays. -- -lu`mi*nes"cent, a.

Source: Webster's Revised Unabridged Dictionary (1913)