The process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and a source of hydrogen (usually water), using light as an energy source. Most forms of photosynthesis release oxygen as a byproduct.
pho′to·syn·thetic (-sĭn-thĕtĭk) adj.
(click for a larger image)photosynthesis
A. sunlight is absorbed by chlorophyll in a leaf
B. carbon dioxide is taken in from the air
C. water is transported from the roots
D. glucose is synthesized and distributed throughout the plant
E. oxygen is released
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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