plastoquinone

[ plas-toh-kwuh-nohn, -kwin-ohn ]
/ ˌplæs toʊ kwəˈnoʊn, -ˈkwɪn oʊn /

noun Biochemistry.

a quinone that occurs in the chloroplasts of plants and functions as an electron carrier during photosynthesis.

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020