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actinism

[ak-tuh-niz-uh m]
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noun
  1. the property of radiation by which chemical effects are produced.
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Origin of actinism

First recorded in 1835–45; actin- + -ism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

radioactivityradiographactinismencephalogramfluoroscoperefractometry

Examples from the Web for actinism

Historical Examples

  • In summer, when the maturing process advances, light and heat increase, and actinism relatively declines.

    The Reason Why

    Anonymous

  • In the autumn, when the ripening period arrives, light and actinism give way to a greater ratio of heat.

  • Because blue glass obstructs many of the luminous rays, but it is perfectly transparent to actinism.

  • The third constituent of the sunbeam is actinism—its property being to produce chemical effects.

  • As yet, the effects of actinism have been more studied in the inanimate than the organic creation.