nondisjunction

[ non-dis-juhngk-shuh n ]
/ ˌnɒn dɪsˈdʒʌŋk ʃən /

noun Biology.

the failure of chromosomes to separate and segregate into daughter cells at division.

Origin of nondisjunction

First recorded in 1910–15; non- + disjunction

Words nearby nondisjunction

nondestructive testing, nondirectional, nondirective, nondirective therapy, nondisclosure agreement, nondisjunction, nondistinctive, nondomiciled, nondrinker, nondrip, nondurable

Example sentences from the Web for non-disjunction

British Dictionary definitions for non-disjunction

nondisjunction
/ (ˌnɒndɪsˈdʒʌŋkʃən) /

noun

the failure of paired homologous chromosomes to move to opposite poles of the cell during meiosis

Medical definitions for non-disjunction

nondisjunction
[ nŏn′dĭs-jŭngk′shən ]

n.

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.

Other words from nondisjunction

non′dis•junc′tion•al adj.