plastid
nounAny 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.
nounA general name for any permanent organ of the cell except the nucleus and centrosome.
nounA unicellular organism; a simple unit of aggregation of the first order, as an individual protozoan, or a cell considered with reference to its developmental or evolutionary potentiality.
nounIn botany, one of the variously shaped proteid bodies, such as chlorophyl-granules, leucoplastids, chromoplastids, etc., which may be clearly differentiated in the protoplasm of active cells.
nounThey have substantially the same chemical and, with the exception of color, the same physical properties as protoplasm. They are regarded as being the centers of chemical activity in cells.
Having the character or quality of a plastid; plastic or plasmic.
nounA formative particle of albuminous matter; a monad; a cytode. See the Note under
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
Any of various
any of various small particles in the cytoplasm of the cells of plants and some animals containing pigments or starch or oil or protein
