Definition of chloroplast noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈklɒrəplɑːst//
; NAmE NAmE//ˈklɔːrəplæst//
(biology) Cell biology
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the structure in plant cells that contains chlorophyll and in which photosynthesis takes place See related entries: Cell biology Word Originlate 19th cent.: coined in German from Greek khlōros ‘green’ + plastos ‘formed’.
See the Oxford Advanced American Dictionary entry: chloroplast