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.
2. (Biol.)
Defn: 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.
3. (Biol.)
Defn: The direct development of an embryo, without metamorphosis, into an organism similar to the parent organism; — opposed to metagenesis. E. van Beneden.
MONOGENETIC
Mon`o*ge*net"ic, a. Etym: [See Monogenesis.]
1. (Geol.)
Defn: One in genesis; resulting from one process of formation; — used of a mountain range. Dana.
2. (Biol.)
Defn: Relating to, or involving, monogenesis; as, the monogenetic school of physiologists, who admit but one cell as the source of all beings.