thylakoid


thy·la·koid

noun \ˈthī-lə-ˌkid\

Definition of THYLAKOID

:  any of the membranous disks of lamellae within plant chloroplasts that are composed of protein and lipid and are the sites of the photochemical reactions of photosynthesis

Origin of THYLAKOID

International Scientific Vocabulary thylak- (from Greek thylakos sack) + -oid
First Known Use: 1962

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