|See chromoplast any of various small particles in the cytoplasm of the cells of plants and some animals that contain pigments, starch, oil, protein, etc|
|[C19: via German from Greek plastēs sculptor, from plassein to form]|
plastid plas·tid (plās'tĭd)
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. Also called trophoplast.
One of the granules of foreign or differentiated matter, food particles, or waste material in cells.
|plastid (plās'tĭd) Pronunciation Key
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.