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词汇 photonegative
释义

Definition of photonegative in English:

photonegative

adjective fəʊtəʊˈnɛɡətɪvˌfōdōˈneɡədiv
  • 1Biology
    (of an organism) tending to move away from light.

    〔生〕(生物体)避光的,怕光的,负趋光的

    Example sentencesExamples
    • Homozygous ß3 mutant larvae were also photonegative, but hemizygous ß3 mutant larvae were photoneutral.
    • 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.’
  • 2Physics
    (of a substance) exhibiting a decrease in electrical conductivity under illumination.

    〔物理〕(物质)负光电的,负光电导性的

    Example sentencesExamples
    • 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.

Definition of photonegative in US English:

photonegative

adjectiveˌfōdōˈneɡədiv
  • 1Biology
    (of an organism) tending to move away from light.

    〔生〕(生物体)避光的,怕光的,负趋光的

    Example sentencesExamples
    • 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.
  • 2Physics
    (of a substance) exhibiting a decrease in electrical conductivity under illumination.

    〔物理〕(物质)负光电的,负光电导性的

    Example sentencesExamples
    • 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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