[Greek A - particle placed at the beginning of a word with negative meaning, bios - life and genes - born, originated]
process (assumed) of origin of life with gradual evolution of matters into more complicated forms of inorganic nature and originating of biopolymers (nucleon acids, protein, etc.) which are characterized by the basic properties of living things and, first and foremost, by capacities to metabolism, as an indispensable condition of their existence.
См.: Biogenesis