Dictionary.com
Thesaurus.com

karyokinesis

American  
[kar-ee-oh-ki-nee-sis, -kahy-] / ˌkær i oʊ kɪˈni sɪs, -kaɪ- /

noun

Cell Biology.
  1. mitosis.

  2. the series of active changes that take place in the nucleus of a living cell in the process of division.


karyokinesis British  
/ -kaɪ-, ˌkærɪəʊkɪˈniːsɪs, -kaɪ-, ˌkærɪəʊkɪˈnɛtɪk /

noun

  1. the division of a cell nucleus in mitosis or meiosis

"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

Other Word Forms

Etymology

Origin of karyokinesis

First recorded in 1880–85; karyo- + -kinesis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Prokaryotic cells, on the other hand, do not undergo karyokinesis and therefore have no need for a mitotic spindle.

From Textbooks Jun. 9, 2022

The first portion of the mitotic phase is called karyokinesis, or nuclear division.

From Textbooks Jun. 9, 2022

Lastly, with respect to karyokinesis, although it is true that the microscope has in comparatively recent years displayed this apparently important distinction between unicellular and multicellular organisms, two considerations have here to be supplied.

From Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions by George John Romanes

If in the cytoplasm of a cell there are two points of molecular concentration greater than that of the general mass, the nucleus must necessarily divide with all the phenomena which accompany karyokinesis.

From The Mechanism of Life by Stéphane Leduc

The experiment shows that diffusion is quite sufficient to produce organic karyokinesis, and that the only physical force required is that of osmotic pressure.

From The Mechanism of Life by Stéphane Leduc

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training