monad

monad definition - medical

mo·nad (mōˈnădˌ)

noun
  1. An atom or a radical with a valence of 1.
  2. A single-celled microorganism, especially a protozoan of the genus Monas.
  3. Any of the four chromatids of a tetrad that, after the first and second meiotic divisions, separate to become the chromosomal material in each of the four daughter cells.

Related Forms:

  • mo·nadˈic (mə-nădˈik), mo·nadˈi·cal adjective

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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