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Pronunciation: fo'to-sin'the-sis


  1. The compounding or building up of chemical substances under the influence of light.
  2. The process by which green plants, using chlorophyll and the energy of sunlight, produce carbohydrates from water and carbon dioxide, liberating molecular oxygen in the process.

[photo- + G. synthesis, a putting together]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.