from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A triangular muscle on the human shoulder.
from the GNU version of the Collaborative International Dictionary of English
- adj. a large triangular muscle covering the shoulder joint, which serves to raise the arm directly upward.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm
Short for deltoideus + muscle. Previously the deltoideus muscle and musculus deltoideus. (Wiktionary)