photocatalyst
McGraw-Hill Science & Technology Dictionary:
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photocatalyst
(′fōd·ō′kad·əl·ist)
(physical chemistry) A light-absorbing substance which, when added to a reaction, facilitates the reaction, while remaining unchanged at the end of the reaction.
American Heritage Stedman's Medical Dictionary:
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pho·to·cat·a·lyst
(fō'tō-kăt'l-ĭst)
n.
n.
A substance that helps bring about a light-catalyzed reaction, such as chlorophyll in photosynthesis.
Saunders Veterinary Dictionary:
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photocatalyst
A substance, e.g. chlorophyll, that brings about a chemical reaction on exposure to light.
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McGraw-Hill Science & Technology Dictionary
McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
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American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
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