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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The study of the effect of light on chemicals.

from the GNU version of the Collaborative International Dictionary of English

  • n. The science which treats of rays of light, especially of the actinic or chemical rays.

from The Century Dictionary and Cyclopedia

  • n. That branch of science which investigates the chemical action of light.
  • n. The study of the Actinozoa: as, the actinology of the South Atlantic.


Sorry, no etymologies found.


  • n. - instrument for calculating time of photographic exposures. actinology



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