triboluminescence
Concise Oxford English Dictionary © 2008 Oxford University Press:
triboluminescence /ˌtrʌɪbəʊluːmɪˈnɛs(ə)ns/
▶noun the emission of light from a substance caused by rubbing, scratching, or similar frictional contact.
– derivatives
triboluminescent adjective.
triboluminescent adjective.
'triboluminescence' also found in these Oxford entries:

