Biol. [mod.L.: see SYN- and GENESIS.] Formation of the germ in sexual reproduction by fusion of the male and female elements, so that the substance of the embryo is derived from both parents.
1836–9. Todd’s Cycl. Anat., II. 427/2. The theory of Syngenesis or Combination seems to have been applied principally to the explanation of reproduction of quadrupeds and man.
1864. Lewes, Aristotle, xvii. 353. The theory of Syngenesis, which considers the embryo to be the product of both male and female, is as old as Empedocles.
1901. Dorland, Med. Dict. (ed. 2), Syngenesis, the hypothetic principle that each germ contains in itself the germs of every generation that may be derived from it.
