/ Dictionary / Index S scintillation counter: Meaning and Definition of Find definitions for: scintilla'tion count"er Pronunciation: (sin"tl-om'i-tur). [key] a device for detecting and measuring radioactivity, having a crystal scintillator, a photoelectric cell sensitive to the light from scintillations, and an amplifier. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. scintillation scintillation spectrometer Related Content Daily Word Quiz: digression Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language