nondisjunction

nondisjunction definition - medical

non·dis·junc·tion (nŏnˌdĭs-jŭngkˈshən)

noun
The failure of one or more pairs of chromosomes to separate at the miotic stage of karyokinesis, with the result that both chromosomes are carried to one daughter cell and none to the other.

Related Forms:

  • nonˌdis·juncˈtion·al 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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