from
The Collaborative International Dictionary of English v.0.48
Monogenesis \Mon`o*gen"e*sis\, n. [Mono- + genesis.]
1. Oneness of origin; esp. (Biol.), development of all beings
in the universe from a single cell; -- opposed to
{polygenesis}. Called also {monism}. --Dana. --Haeckel.
[1913 Webster]
2. (Biol.) That form of reproduction which requires but one
parent, as in reproduction by fission or in the formation
of buds, etc., which drop off and form new individuals;
asexual reproduction. --Haeckel.
[1913 Webster]
3. (Biol.) The direct development of an embryo, without
metamorphosis, into an organism similar to the parent
organism; -- opposed to {metagenesis}. --E. van Beneden.
[1913 Webster]