thermoluminescence Syllabification: (ther·mo·lu·mi·nes·cence)Pronunciation: /ˌTHərmōˌlo͞oməˈnesəns/Definition of thermoluminescence noun the property of some materials that have accumulated energy over a long period of becoming luminescent when pretreated and subjected to high temperatures, used as a means of dating ancient ceramics and other artifacts. Derivatives thermoluminescent adjective thermoluminescence in other Oxford dictionaries Definition of thermoluminescence in the British & World English dictionary