progenoten.
/prə(ʊ)ˈdʒiːnəʊt/, U.S. /proʊˈdʒiˌnoʊt/ Biology.
A hypothetical simple biological entity or organized system of a kind that could have included the evolutionary common ancestor of eukaryotes and prokaryotes.
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progenote1977
1977 C. R. Woese & G. E. Fox in Jrnl. Molecular Evol. 10 3 Such organisms would necessarily be on a level of complexity far simpler than the procaryotic. Organism[s] of this type, in the throes of evolving the genotype-phenotype relationship, are properly designated progenotes.
1988 Nature 14 Jan. 111/3 The metabolic properties of the original cell (the progenote) are not specified in this method.
2000 C. Tudge Variety of Life ii. ii. 126 There was just a living ‘syncytium’, which Woese has called the ‘progenote’: a more-or-less continuous living ‘slime’ that spread all over the globe.
2003 Nature 27 Nov. 391/1 A hypothetical ‘cenancestor’ (sometimes called the progenote or last universal common ancestor).
This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022).
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n.1977