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photophoresis
noun
pho·to·pho·re·sis
\ˌfōtəfəˈrēsə̇s\
Definition of photophoresis
photophoreses
\-ēˌsēz\: movement of small particles (as dust particles) under the influence of radiant energy (as light) that is considered positive when the movement is away from the source of energy and negative when toward it — compare magnetophotophoresis
photophoretic
adjectiveFrom the M-W Editors
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Origin and Etymology of photophoresis
New Latin, from phot- + -phoresis
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