deltoideus
/dɛlˈtɔɪdiəs/
noun
- The deltoid muscle, a large triangular muscle covering the shoulder joint that lifts the arm away from the body.
- Injuries to the deltoideus can make it hard to lift objects overhead.
- The deltoideus helps you raise your arm to the side.
- Strengthening the deltoideus is important for swimmers and baseball players.
Synonyms