from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A small particle in the cytoplasm of a cell, typically consisting of fragmented endoplasmic reticulum to which ribosomes are attached.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A vesicle formed as an artifact of cell disruption

from the GNU version of the Collaborative International Dictionary of English

  • n. a tiny granule in the cytoplasm of a cell; it consists of ribosomes bound to fragments of the endoplasmic reticulum and mitochondria.

from The Century Dictionary and Cyclopedia

  • n. Same as microsoma.
  • n. One of the minute granules found in the protoplasm of animal and plant cells and by some biologists regarded as the ultimate units of living matter. The microsomes of the nucleus are known as karyomicrosomes, those of the cytoplasm of the cell as cytomicrosomes. See cut under aster, 7.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a tiny granule in the cytoplasm that is where protein synthesis takes place under the direction of mRNA


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.