carbon fixation

noun
1.
the process by which plants assimilate carbon from carbon dioxide in the atmosphere to form metabolically active compounds
Contemporary definitions for carbon fixation
noun

the process by which plants turn inorganic carbon (carbon dioxide) into organic compounds such as carbohydrates

carbon fixation in Science
carbon fixation  
The process in plants and algae by which atmospheric carbon dioxide is converted into organic carbon compounds, such as carbohydrates, usually by photosynthesis. See more at carbon cycle.