Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of the chemical reactions that take place as part of the first stage of photosynthesis and require the presence of light, by which energy captured from light is converted to chemical energy in the form of ATP.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the first stage of photosynthesis during which energy from light is used for the production of ATP
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