protrusion
US /prəˈtruː.ʒən/
UK /prəˈtruː.ʒən/
명사
돌출
something that sticks out from a surface, or the act of doing this:
예시:
•
It has a series of protrusions along its back.
돌출
something that sticks out from a surface, or the act of doing this: