The supposed spontaneous origination of living organisms directly from nonliving matter. The theory of autogenesis was once considered a plausible explanation for the origin of life.
The process of self-generation or self-creation. In certain philosophical discussions, autogenesis is considered a key concept in understanding the nature of consciousness.
In embryology, the ability of a part of an embryo to develop into a complete structure on its own, without external influence. The neural crest cells exhibit autogenesis, differentiating into diverse tissues independently.