First Known Use: 1913
Dictionary
nondisjunction
noun non·dis·junc·tion \ˌnän-dis-ˈjəŋ(k)-shən\
Definition of NONDISJUNCTION
: failure of homologous chromosomes or sister chromatids to separate subsequent to metaphase in meiosis or mitosis so that one daughter cell has both and the other neither of the chromosomes
— non·dis·junc·tion·al \-shnəl, -shə-nəl\ adjective
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Origin of NONDISJUNCTION
International Scientific Vocabulary
Medical Dictionary
nondisjunction
noun non·dis·junc·tion \ˌnän-dis-ˈjəŋ(k)-shən\
Medical Definition of NONDISJUNCTION
: failure of homologous chromosomes or sister chromatids to separate subsequent to metaphase in meiosis or mitosis so that one daughter cell has both and the other neither of the chromosomes
—non·dis·junc·tion·al \-shnəl, -shən-əl\ adjective
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