any of several specialized protoplasmic structures occurring in the cytoplasm of some plant cells, in which starch, oil, protein, pigment, etc. are stored
Origin of plastidGerman plastiden (pl.) ; from Classical Greek plastides, plural of plastis, feminine of plast?s, molder ; from plassein, to form: see plastic
Any of several cytoplasmic organelles, such as chloroplasts, that contain genetic material, have a double membrane, and are often pigmented. Plastids are found in plants, algae, and certain other eukaryotic organisms and have various physiological functions, such as the synthesis and storage of food.
Origin of plastidFrom Greek plastis, plastid-, feminine of plast&emacron;s, molder, from plastos, molded; see plastic.