photocatalyst
[ fō′tō-kăt′l-ĭst ]
n.
A substance that helps bring about a light-catalyzed reaction, such as chlorophyll in photosynthesis.
Words nearby photocatalyst
photobiology,
photobiotic,
photobomb,
photocard,
photocatalysis,
photocatalyst,
photocathode,
photocell,
photochemical,
photochemical smog,
photochemistry