Definitionadj. having or employing wavelengths shorter than light but longer than X-rays
Last update: June 16, 2015
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Sunscreens for plants protects them from ultraviolet and infrared radiation. [Please select]
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The method of exhibiting the action of the ultraviolet rays by their chemical action has been long known; indeed, Thomas Young photographed the ultra-violet rings of Newton. [Please select]
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