Definition of mitosis in US English:

mitosis

noun

Biology
  • A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.

    Compare with meiosis
    • ‘Counting cells at mitosis or interphase is universally applicable.’
    • ‘Regions of the germline with cells in mitosis or different stages of meiotic prophase are indicated.’
    • ‘The centromere is responsible for two key chromosomal functions in mitosis and meiosis.’
    • ‘Centromeres are essential for the proper segregation of chromosomes at mitosis and meiosis.’
    • ‘It is generally assumed that DNA chains are randomly segregated to daughter cells during mitosis.’

Origin

Late 19th century: modern Latin, from Greek mitos ‘thread’.

Pronunciation

mitosis

/maɪˈtoʊsəs//mīˈtōsəs/