mitosis

noun mi·to·sis \ mī-ˈtō-səs \

Definition of mitosis

plural mitoses play \-ˌsēz\
1 : a process that takes place in the nucleus of a dividing cell, involves typically a series of steps consisting of prophase, metaphase, anaphase, and telophase, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus — compare meiosis
2 : cell division in which mitosis occurs

mitotic

play \-ˈtä-tik\ adjective

mitotically

play \-ti-k(ə-)lē\ adverb

Recent Examples of mitosis from the Web

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Origin and Etymology of mitosis

borrowed from German Mitosis (later Mitose), from Greek mítos "length of thread, cord used to separate warp threads" (of uncertain origin) + -ōsis -osis
Note: Term coined by the German biologist Walther Flemming (1843-1905) in Zellsubstanz, Kern und Zelltheilung (Leipzig, 1882), p. 376. Flemming introduces the word first in the compound Karyomitosis as a replacement for Karyokinesis to denote specifically "the metamorphosis of threads in the nucleus" ("Fadenmetamorphose im Kern"). In following sentences he uses the truncated form in the plural Mitosen for mitotic figures ("Kerntheilungsfiguren," i.e, the spindle-shaped figures presented by the chromosomes during mitosis) and in the singular Mitosis for the process of division.


MITOSIS Defined for Kids

mitosis

noun mi·to·sis \ mī-ˈtō-səs \

Definition of mitosis for Students

plural mitoses \-ˈtō-ˌsēz\
: a process of cell division in which two new nuclei are formed each containing the original number of chromosomes

Medical Dictionary

mitosis

noun mi·to·sis \ mī-ˈtō-səs \

medical Definition of mitosis

plural mitoses play \-ˌsēz\
1 : a process that takes place in the nucleus of a dividing cell, involves typically a series of steps consisting of prophase, metaphase, anaphase, and telophase, and results in the formation of two new nuclei each having the same number of chromosomes as the parent nucleus — compare meiosis
2 : cell division in which mitosis occurs

mitotic

play \-ˈtät-ik\ adjective

mitotically

play \-i-k(ə-)lē\ adverb

Illustration of mitosis

illustration of mitosis



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