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Meaning of cathodoluminescence

cath•o•do•lu•mi•nes•cence

Pronunciation: (kath"u-dō-l"mu-nes'uns), [key]
— n.
  1. light emitted by a substance undergoing bombardment by cathode rays.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.