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photopositive

[foh-tuh-poz-i-tiv]

adjective

Physics.

  1. pertaining to a substance whose conductivity increases upon absorption of electromagnetic radiation.

photopositive

/ ˌəʊəʊˈɒɪɪ /

adjective

  1. physics (of a material) having an electrical conductivity that increases with increasing illumination

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of photopositive1

First recorded in 1910–15; photo- + positive

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photopolymerizationphotoprint

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