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binary fission

American  

noun

Biology.
  1. fission into two organisms approximately equal in size.


binary fission British  

noun

  1. asexual reproduction in unicellular organisms by division into two daughter cells

"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

Etymology

Origin of binary fission

First recorded in 1895–1900

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:

The micronucleus is essential for sexual reproduction, whereas the macronucleus directs asexual binary fission and all other biological functions.

From Textbooks Jan. 1, 2015

In protists, binary fission can be divided into transverse or longitudinal, depending on the axis of orientation; sometimes Paramecium exhibit this method.

From Textbooks Jan. 1, 2015

T. brucei multiplies by binary fission in blood, lymph and spinal fluid.

From Textbooks Jan. 1, 2015

Most are capable some form of asexual reproduction, such as binary fission to produce two daughter cells, or multiple fission to divide simultaneously into many daughter cells.

From Textbooks Apr. 25, 2013

This organism is remarkable in one or two ways: it possesses a contractile vacuole; the amoeboid trophozoites tend to form plasmodia; and the spores, of the usual simple type, may apparently divide by binary fission.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various

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