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Meaning of plastoquinone

plas•to•qui•none

Pronunciation: (plas"tō-kwu-nōn', -kwin'ōn), [key]
— n. Biochem.
  1. a quinone that occurs in the chloroplasts of plants and functions as an electron carrier during photosynthesis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.