Definition of chloroplast in English:


Syllabification: chlo·ro·plast
Pronunciation: /ˈklôrəˌplast


  • (In green plant cells) a plastid that contains chlorophyll and in which photosynthesis takes place.
    More example sentences
    • Fluorescence of guard cell chloroplasts was imaged when plants were at approximately the six-leaf stage.
    • As Zeiger et al. have recently emphasized, guard cell chloroplasts show remarkable functional plasticity.
    • Even in the late stages of leaf senescence, the chloroplasts of guard cells remain green and functional.


late 19th century: coined in German from Greek khlōros 'green' + plastos 'formed'.

More definitions of chloroplast

Definition of chloroplast in:

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day astrogation
Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space