outgrowth in WordNet English dictionary

1. a natural prolongation or projection from a part of an organism either animal or plant
   "a bony process"
   process  outgrowth  appendage 
   
2. a natural consequence of development
   outgrowth  branch  offshoot  offset 
   
3. the gradual beginning or coming forth
   "figurines presage the emergence of sculpture in Greece"
   emergence  outgrowth  growth