Definition of photonegative in English:


Line breaks: photo|nega¦tive
Pronunciation: /fəʊtəʊˈnɛgətɪv


  • 1 Biology (Of an organism) tending to move away from light.
    More example sentences
    • Species commonly initiate strongly photonegative swimming when the intensity of light decreases, such as would occur when a predator passes overhead; the behavior is known as the ‘shadow response.’
    • Homozygous ß3 mutant larvae were also photonegative, but hemizygous ß3 mutant larvae were photoneutral.
  • 2 Physics (Of a substance) exhibiting a decrease in electrical conductivity under illumination.
    More example sentences
    • In this process, photonegative materials will be removed while photopositive materials remain in the final device.
    • This form of dielectric, in one aspect, is a photonegative paste.

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