serratus
/səˈreɪtəs/
noun
- A muscle in the body that has a saw-toothed or serrated appearance, especially the serratus anterior muscle on the side of the chest.
- An injury to the serratus can cause winging of the shoulder blade.
- The serratus helps stabilize the shoulder blade during arm movements.
- Weightlifters often work on strengthening their serratus for better shoulder control.