paratomyn.
/pəˈratəmi/, U.S. /pəˈrædəmi/ Zoology.
A form of asexual reproduction in which new organs are developed before an animal divides into two or more parts.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > member of > asexual reproduction of
paratomy1930
1930 J. Stephenson Oligochaeta xiii. 522 It would seem that regeneration after separation is the more primitive form; regeneration before separation a more recent development; the first is called..architomy, the second paratomy.
1963 R. P. Dales Annelids viii. 161 The fragmentation of an individual into two or more parts may be referred to as ‘scissiparity’, either before (‘architomy’) or after (‘paratomy’) formation of heads on the parts which break away.
1989 Nature 12 Jan. 170/1 The mode of fission (that is, paratomy) reported here for bipinnariae of [sea stars] Luidia sp. is also seen in adult flatworms and annelids.
This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022).
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n.1930