n.
Pronunciation: ˌ nän-dis- ' j ə ŋ (k)-sh ə n
Function: noun
Etymology: International Scientific Vocabulary
Date: 1913
: 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 \ -shn ə l, -sh ə -n ə l \ adjective