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nonagenarian
nonaggression
nonagon
nonair commercial
nonaligned
nonanoic acid
nonappearance
nonarrival
nonassessable
nonbank
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nondisjunction
non·dis·junc·tion [ nòndiss júngksh'n ]


noun 
Definition:
 
failure of chromosomal separation: a failure of paired chromosomes or sister chromatids to separate during cell division

non·dis·junc·tion·al adjective
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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