Source : Webster's Revised Unabridged Dictionary (1913)

Autogenesis \Au`to*gen"e*sis\, n. [Auto- + genesis.] (Biol.)
   Spontaneous generation.

Source : WordNet®

autogenesis
     n : a hypothetical organic phenomenon by which living organisms
         are created from nonliving matter [syn: {abiogenesis}, {autogeny},
          {spontaneous generation}]