fissiparous

Concise Oxford English Dictionary © 2008 Oxford University Press:
fissiparous /fɪˈsɪp(ə)rəs/

▶adjective

• 1 inclined to cause or undergo fission.

• 2 Biology (of an organism) reproducing by fission.

– derivatives
fissiparity noun,
fissiparousness noun.

– origin C19: from L. fissus, past part. of findere ‘split’, on the pattern of viviparous.