First Known Use: 1962
Dictionary
thylakoid
noun thy·la·koid \ˈthī-lə-ˌkȯid\
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
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Origin of THYLAKOID
International Scientific Vocabulary thylak- (from Greek thylakos sack) + -oid
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