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Definition of "photosynthesis" [pho•to•syn•the•sis]

  • The process in green plants and certain other organisms by which carbohydrates are synthesized from carbon dioxide and water using light as an energy source. Most forms of photosynthesis release oxygen as a byproduct. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "photosynthesis" in a sentence
  • "Prof. Andersson has published a total of 275 papers in photosynthesis research, biological membranes, protein and membrane purification, and light stress"
  • "Several Nobel Prizes for Chemistry have been awarded for work in photosynthesis and respiration, the two main processes in the energy metabolism of living organisms (cf. Section 3.5)."
  • "Examples of such scientists include Stapp, Patel and those at Berkeley lab who, this year, demonstrated photosynthesis is a quantum mechanical mechanism."