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1. the act of splitting.
2. asexual reproduction in which the cell divides into two (binary fission) or more (multiple fission) daughter parts, each of which becomes an individual organism.
3. nuclear fission; the splitting of the atomic nucleus, with release of energy.
binary fission the halving of the nucleus and then of the cytoplasm of the cell, as occurs in protozoa.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
simple fission in which the two new cells are approximately equal in size.
Farlex Partner Medical Dictionary © Farlex 2012
A method of asexual reproduction that involves the splitting of a parent cell into two approximately equal parts.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
binary fissionAsexual reproduction in which a cell divides into 2 daughter cells after DNA replication and mitosis.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
bi·na·ry fis·sion(bī'nar-ē fish'ŭn)
Simple fission in which the two new cells are approximately equal in size.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
binary fissionan asexual method of cell reproduction (see ASEXUAL REPRODUCTION carried out by PROKARYOTES and some primitive EUKARYOTES, in which the chromosomal material is replicated and then the cytoplasm splits by CYTOKINESIS. Such processes differ from MITOSIS and MEIOSIS in that the chromosomal separation does not involve cellular MICROTUBULES forming a spindle.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005