photosystem
pho·to·sys·tem
noun \ˈfō-tō-ˌsis-təm\Definition of PHOTOSYSTEM
: 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 I b : one that absorbs light with a wavelength of about 680 nanometers —called also photosystem II
First Known Use of PHOTOSYSTEM
1964
Browse
Next Word in the Dictionary: phototactic
Previous Word in the Dictionary: photosynthetic ratio
All Words Near: photosystem
Previous Word in the Dictionary: photosynthetic ratio
All Words Near: photosystem
Seen & Heard 
What made you want to look up photosystem? Please tell us where you read or heard it (including the quote, if possible).
