progenetic, n. Biol.
Brit. /ˌprəʊdʒɪˈnɛtɪk/, U.S. /ˌproʊdʒəˈnɛdɪk/
[‹ pro- prefix2 + -genetic comb. form. In sense 2 after progenesis n.; compare French progénétique (A. Giard & J. Bonnier 1887, in Trav. de l'Inst. Zool. de Lille et du Laboratoire de Zool. Maritime de Wimereux 5 ii. 212).]
1. Before embryogenesis.
| 1873 Jrnl. Anthropol. Inst. 2 133 Embryogenesis is the act of the incarnative soul, which forms its own body by associating the atoms of substance prepared in the egg, to form organic cells and fibres, tissues and organs, within the complex unit, in accordance with the progenetic type from which the egg was first derived. |
2. Exhibiting progenesis; of, relating to, or resulting from progenesis.
| 1935 Proc. Helminthol. Soc. Washington 2 79 (title) A progenetic metacercaria of a Clinostomum in a West Indian land snail. 1962 Q. Rev. Biol. 37 28/2 They are merely precocious progenetic larvae that have dropped the strobilate stage. 1978 Ann. Rev. Ecol. & Systematics 9 387 The scalariform pitting of primitive dicots might be better interpreted as a result of almost complete progenetic loss of secondary growth. 1987 Amer. Naturalist 129 63 The length of the larval period of progenetic organisms is truncated or shorter than the length of the larval period of the organism's ancestors. 2002 Molecular Phylogenetics & Evol. 25 190 A constraint monophyly of Dinophilidae and P. psammophilus is rejected by several tests, substantiating the hypothesis of separate progenetic evolutionary events. |