photosystem

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noun pho·to·sys·tem \ˈfō-tō-ˌsi-stəm\

Definition of photosystem

  1. :  either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts:a :  one that absorbs light with a wavelength of about 700 nanometers —called also photosystem Ib :  one that absorbs light with a wavelength of about 680 nanometers —called also photosystem II

1961

First Known Use of photosystem

1961


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