deltoid
/ˈdɛl.tɔɪd/
noun
- The large triangular muscle that covers the shoulder joint and helps lift the arm.
- Swimming is great for strengthening the deltoids.
- He injured his deltoid while lifting weights at the gym.
- The physical therapist showed her exercises to target the deltoid.
adjective
- Shaped like a triangle; triangular.
- The artist used a deltoid pattern in the mosaic design.
- The deltoid shape of the kite helped it fly steadily.
- Botanists describe the leaf as deltoid because of its broad, triangular form.
Synonyms