actinism
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actinism
the ability of sunlight or similar forms of radiation to produce chemical changes.
actinism
A nonspecific term of waning use for any effect of radiant (solar) energy on biological or chemical systems.actinism
(ak′tĭ-nĭzm) [actin- + -ism]The property of radiant energy that produces chemical changes, as in photography or heliotherapy.