- photonegative
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/foh'teuh neg"euh tiv/, adj. Physics.pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation.[1910-15; PHOTO- + NEGATIVE]
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Universalium. 2010.
photonegative
Look at other dictionaries:
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photonegative — adjective Date: 1914 exhibiting negative phototropism or phototaxis … New Collegiate Dictionary
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