What does scintillation mean?
Scintillation is the phenomenon of light sparkling, twinkling, or appearing in brief flashes. It can describe the shimmering reflection of light from gems, water, glass, or other surfaces, as well as the rapid flashes produced by specialized materials or detected by instruments. The word often suggests movement, brightness, and a sense of delicate energy, giving ordinary descriptions such as the scintillation of moonlight on the sea a literary quality. In scientific contexts, scintillation has a more precise meaning: the emission or registration of light in individual flashes, often associated with particles, crystals, or detectors. Because the term comes from the Latin word for a small spark, it is especially apt for light that appears as a succession of tiny, brilliant points.
nounThe act of sparkling or twinkling, especially as light is reflected from a surface in flashes. It can also refer to the emission of rapid, brief flashes of light by a material or object.
- The sparkling or twinkling appearance of light, especially when it reflects from a surface.
- The emission of brief, rapid flashes of light by a material or object.
- A scintillation or glittering point of light, especially one of many observed in the atmosphere or in a scintillator.
"The scintillation of the diamonds in the display case drew the crowd's attention."
"She watched the scintillation of the streetlights through the rain."
"The detector recorded the scintillation produced by the incoming particle."
The plural is regular and is used for separate sparkling or flashing phenomena, especially individual flashes or points of light.
"The instrument detected faint scintillations in the crystal."
From a tiny spark to the flicker of starlight, scintillation is the word for light that seems to dance.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does scintillation come from?
Scintillation derives from Latin scintillāre, “to sparkle” or “to twinkle,” which comes from scintilla, a small spark or ember. English borrowed the noun in the 17th century, initially in the sense of sparkling or twinkling. The same Latin root also underlies scintillate and scintillator, a device or material used to detect or produce flashes of light.
Related word forms
How scintillation is actually used
In general use, scintillation describes a sparkling or twinkling effect and often carries a literary or poetic tone. In physics and related technical fields, it refers more specifically to the production or detection of brief flashes of light.
Easily confused with scintillation
A scintillation is the phenomenon of sparkling or flashing, whereas a scintilla is a tiny spark or glowing particle.