Deltoid
/ˈdɛɫtɔɪd/
"Deltoid" in a Sentence (2 examples)
The deltoid muscles need time to recover. Be careful not to over exercise them.
Intramuscular injections are administered at a 90-degree angle to the skin, preferably into the anterolateral aspect of the thigh or the deltoid muscle of the upper arm, depending on the age of the patient.