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amitosis

[am-i-toh-sis, ey-mahy-]
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noun Biology.
  1. the direct method of cell division, characterized by simple cleavage of the nucleus without the formation of chromosomes.
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Origin of amitosis

First recorded in 1890–95; a-6 + mitosis
Related formsam·i·tot·ic [am-i-tot-ik, ey-mahy-] /ˌæm ɪˈtɒt ɪk, ˌeɪ maɪ-/, adjectiveam·i·tot·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

amitosismeiosismitosis
British Dictionary definitions for amitosis

amitosis

noun
  1. an unusual form of cell division in which the nucleus and cytoplasm divide by constriction without the formation of chromosomes; direct cell division
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Derived Formsamitotic (ˌæmɪˈtɒtɪk), adjectiveamitotically, adverb

Word Origin

C19: a- 1 + mitosis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
amitosis in Medicine

amitosis

(ăm′ĭ-tō′sĭs, ā′mī-)
n.
  1. Direct cell division by simple cleavage of the nucleus, without spindle formation or the appearance of chromosomes.direct nuclear division
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Related formsam′i•tot′ic (-tŏt′ĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.