plas·tid /ˈplæstəd/
 色素體,質體,成形原體


 plas·tid /ˈplæstəd/ 名詞
 質體


 Plas·tid Plas·tide n.
 1. Biol. A formative particle of albuminous matter; a monad; a cytode. See the Note under Morphon. [Archaic]
 2. Bot. any of several types of minute granules found in the protoplasm of vegetable cells, having their own membrane, robosomes, and DNA. Among plant cells the most common are chloroplasts, which contain the chlorophyll and the photosynthetic machinery of the cell.  They are divided by their colors into three classes, chloroplastids, chromoplastids, and leucoplastids.

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 plastid
      n : any of various small particles in the cytoplasm of the cells
          of plants and some animals containing pigments or starch
          or oil or protein