outgrowth          
noun [ C ] uk/ˈaʊt.ɡrəʊθ/ us/ˈaʊt.ɡroʊθ/
 biology specialized长出物;旁枝 
a growth on the outside of an animal or plant
  Antlers are the bony outgrowths on the heads of deer. 鹿角是鹿的头部长出的骨状物。 
  结果;发展
a result or development
  This policy is just an outgrowth of earlier decisions. 这项政策不过是先前决议的产物。