noun
the phenomenon in which light is scattered by very small particles in its path; it makes a beam of light visible; the scattered light is mainly blue
• Hypernyms: ↑optical phenomenon
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noun also tyndall phenomenonUsage: usually capitalized T
Etymology: after John Tyndall died 1893
: the scattering of a beam of light when passed through a medium containing small suspended particles (as smoky or mist-laden air or colloidal solutions) — compare rayleigh scattering
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Tyndall effect,
the scattering of light in different colors by the particles of a colloid: »
The bluish appearance of a light beam passing through something like a soap solution is called the “Tyndall effect” (G. Gamow).
Useful english dictionary. 2012.