from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Capable of responding to light photoelectrically.
  • adj. Capable of responding to sunlight or ultraviolet radiation by chemical reaction.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Able to convert the energy of light into electricity via photoelectricity
  • adj. Able to react chemically under the influence of light


Sorry, no etymologies found.


  • It's been a scarce collector's item until a couple of months ago, when AMT Ertl reissued it, albeit still in its photoactive molding and lacking the internal lighting fixtures or nacelle engines of the original.

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  • Nanosolar ceo Martin Roscheisen, who, like many new solar kings, has roots in Silicon Valley, says he can achieve radical cost savings by directly applying photoactive chemicals with an ink composed of nanoparticles.

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  • Coated with a few dozen nanometers of a photoactive film, Pilkington's new Activ sic glass effectively cleans itself, as natural radiation from sunlight chemically reacts with organic dirt deposits on the surface.

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  • Essentially, the orthicon was a pickup tube that used a low-velocity electron beam to scan a photoactive mosaic.

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  • One area to watch in particular is photoactive plastics, nanoscale material capable of generating an electrical charge from light, said Matthew Nordan, vice president of research at nanotech consulting firm Lux Research.

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  • GUPTA: First Brienne's doctors apply something called aminolevulinic acid or ALA to the skin making bacteria photoactive and receptive to the laser.

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  • Coreceptors: Design, synthesis and properties of macropolycyclic complexing agents binding selectively one or several molecular substrates: metalloreceptors; photoactive receptors; cyclointercalands.

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  • Cryptates: Design, synthesis and properties of ligands forming stable and selective inclusion complexes with metal ions; di - and poly-nuclear cryptates; bioinorganic models; photoactive and electroactive cryptates; cluster cryptates; energy and electron transfer processes.

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  • Their proposal combines carbon nanotubes with a well known photoactive chemical, azobenzene, to store solar energy at high densities.

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  • These photoactive molecules could be the ideal solar fuel, as the right material should be transportable, affordable, and rechargeable.

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