deltoid
deltoid — noun
- deltoidsingular
- deltoidsplural
1. one of the main muscles covering the top of the shoulder, triangular in shape, t
one of the main muscles covering the top of the shoulder, triangular in shape, that you use to raise your arm sideways or toward the front.
Sofia felt a sharp pain in her right deltoid after lifting the heavy box.
deltoid + pain after lifting
The physiotherapist showed Rohan three exercises to strengthen his deltoid muscles.
strengthen + deltoid muscles
Apinya's coach noticed that her left deltoid was noticeably bigger than her right one.
After the swimming session, Talia massaged her aching deltoid with a foam roller.
The anatomy textbook labelled the deltoid as the main muscle that raises the arm sideways.
- deltoid muscle
the full, more explicit term; 'deltoid' alone is the shortened form
文法句型
the deltoid / deltoids
用法筆記
Common in the plural form 'deltoids' when referring to the pair of shoulder muscles. Fitness contexts often refer to 'anterior', 'lateral', and 'posterior' deltoid as separate regions of the same muscle.
常見錯誤
deltoid — adjective
- deltoidpositive
- more deltoidcomparative
- most deltoidsuperlative
1. having a shape like a triangle or the Greek capital letter delta (Δ), with a bro
having a shape like a triangle or the Greek capital letter delta (Δ), with a broad base and a pointed end.
The botanist noted the tree's deltoid leaves, broad at the base and pointed at the tip.
deltoid + leaves
Several ancient coins bore a deltoid pattern stamped on the reverse side.
deltoid + pattern
The river formed a wide deltoid fan of sediment where it met the lake.
Emre drew a deltoid kite with a wide top and a narrow lower section.
- triangular
the everyday word; 'deltoid' is more specific to anatomy and formal descriptions
- delta-shaped
a clear, informal alternative that avoids confusion with the muscle
文法句型
deltoid + noun
用法筆記
A technical term used mainly in anatomy, botany, and geometry. In everyday conversation, 'triangular' is far more common and preferred.