fission

fission (fish´un)

1. The act of splitting, e.g., amitotic division of a cell or its nucleus. 2. Splitting of the nucleus of an atom. [L. fissio, a cleaving, fr. findo, pp. fissus, to cleave]
binary f. simple f. in which the two new cells are approximately equal in size.
bud f. gemmation
multiple f. division of the nucleus, simultaneously or successively, into a number of daughter nuclei, followed by division of the cell body into an equal number of parts, each containing a nucleus.
simple f. division of the nucleus and then the cell body into two parts. See also binary f.

 

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