Definition of meiosis noun from the Oxford Advanced Learner's Dictionary



BrE BrE//maɪˈəʊsɪs//
; NAmE NAmE//maɪˈoʊsɪs//
[uncountable] (biology) Cell biology
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the division of a cell in two stages that results in four cells, each with half the number of chromosomes of the original cell See related entries: Cell biology Word Originmid 16th cent. (as another term for litotes): modern Latin, from Greek meiōsis, from meioun ‘lessen’, from meiōn ‘less’. The current sense dates from the early 20th cent.
See the Oxford Advanced American Dictionary entry: meiosis