photocatalyst

[ fō′tō-kătl-ĭst ]

n.

A substance that helps bring about a light-catalyzed reaction, such as chlorophyll in photosynthesis.

Nearby words

  1. photobiology,
  2. photobiotic,
  3. photobomb,
  4. photocard,
  5. photocatalysis,
  6. photocathode,
  7. photocell,
  8. photochemical,
  9. photochemical smog,
  10. photochemistry


The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.