autotemnous

au·to·tem·nous

(aw'tō-tem'nŭs),
Denoting a cell that propagates itself by fission without previous conjugation.
[auto- + G. temnō, to cut]

autotemnous

(aw″tō-tĕm′nŭs) [″ + temnein, to divide]
An outdated term meaning spontaneous division of cells.