outgrowth
/ˈaʊtgrəʊθ/noun
1- something that grows out of something else长出物：
the eye first appears as an outgrowth from the brain.
眼睛起先看起来是从脑子里长出来的东西。
1.1
- a natural development or result of something发展结果; 结果; 产物：
the book is an imaginative outgrowth of practical criticism.
该书是来自务实批评的富有想像力的产物。
1.2
- mass noun the process of growing out长出：
with further outgrowth the radius and ulna develop.
随着长出过程的进一步发展桡骨和尺骨发育了。