photonegative

American  

[foh-tuh-neg-uh-tiv] / ˌfoʊ təˈnɛg ə tɪv /

adjective

Physics.

1. pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation.

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photonegative British  

/ ˌfəʊtəʊˈnɛɡətɪv /

adjective

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

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Etymology

Origin of photonegative

First recorded in 1910–15; photo- + negative

Example Sentences

“All of Us Strangers,” down to the seemingly innocuous phrase Haigh appends to the original novel’s title, is ultimately a statement of his conviction that there is something “beautiful and sweet and tender” in our sorrow and disappointment — that grief, for instance, might be understood as photonegative proof of the existence of love.

From Los Angeles Times

Another way to describe “The War for Gloria” might be to call it a photonegative of Erich Segal’s “Love Story.”

From New York Times

Right now, too many places are operating in photonegative space from common sense, imposing on those who did the right thing while coddling those who refuse to do the bare minimum.

From Salon

In this way, Trump is a photonegative of Joe Biden.

From Washington Post

The researchers showed humans with 3-D glasses some images of moving dark and bright dots, except that the image shown to one eye was essentially the photonegative of the other.

From Seattle Times