Biologically Active Substance
chlorophyll Audio
chlo·ro·phyll [ klawr-uh-fil, klohr- ]
Brand Names:
Derifil
More Information:
ChemID; DailyMed; PDR
Definitions related to chlorophyll:
  • A porphyrin derivative conjugated with a magnesium ion that is found in plant chloroplasts, algae and cyanobacteria. Chlorophyll is essential to the process of photosynthesis. It absorbs light in the blue and red parts of the visible spectrum and transfers the absorbed photon energy to an electron, which is used to produce ATP.
    NCI
    U.S. National Cancer Institute, 2021
  • Magnesium chlorin pigment related to porphyrin that acts to convert light energy in photosynthetic organisms; gives plants their green color.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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