plas·tid (pl s t d)n. Any of several pigmented cytoplasmic organelles found in plant cells and other organisms, having various physiological functions, such as the synthesis and storage of food. [From Greek plastis, plastid-, feminine of plast  s, molder, from plastos, molded; see plastic.]plas·tid i·al (pls-td- l) adj. |
plastid [ˈplæstɪd]
n
(Life Sciences & Allied Applications / Botany) any of various small particles in the cytoplasm of the cells of plants and some animals that contain pigments (see chromoplast), starch, oil, protein, etc.
[via German from Greek plastēs sculptor, from plassein to form]
| plastid (plstd) An organelle found in the cells of plants, green algae, red algae, and certain other protists. Like mitochondria, plastids have an inner and outer membrane, and contain their own DNA and ribosomes. Some plastids, such as the chloroplasts in plant leaves, contain pigments. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  plastid - any of various small particles in the cytoplasm of the cells of plants and some animals containing pigments or starch or oil or proteingranule - a tiny grain chromoplast - plastid containing pigments other than chlorophyll usually yellow or orange carotenoids chloroplast - plastid containing chlorophyll and other pigments; in plants that carry out photosynthesis |
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