Source : Webster's Revised Unabridged Dictionary (1913)

Biogenesis \Bi`o*gen"e*sis\, Biogeny \Bi*og"e*ny\, n. [Gr. ?
   life + ?, ?, birth.] (Biol.)
   (a) A doctrine that the genesis or production of living
       organisms can take place only through the agency of
       living germs or parents; -- opposed to {abiogenesis}.
   (b) Life development generally.

Source : WordNet®

biogeny
     n : the production of living organisms from other living
         organisms [syn: {biogenesis}]