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Tyndall effect

/ ˈtɪndəl /

noun

  1. the phenomenon in which light is scattered by particles of matter in its path. It enables a beam of light to become visible by illuminating dust particles, etc
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of Tyndall effect1

C19: named after John Tyndall (1820–93), Irish physicist
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Example Sentences

At a molecular level, the color originates from the Tyndall effect, the scattering of light by the skin itself, Bercovitch says.

Other side effects that may last up to 48 hours include bruising, bumps, swelling or a so-called Tyndall effect, which causes the under-eye skin to look bluish.

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Tyndall beamtyndallimetry