from The Century Dictionary.
- noun One of the muscles of the arm, the long supinator of the radius.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun anatomy A
musclethat flexesthe forearmat the elbow.
Sorry, no etymologies found.
" Dickie's supraspinatus and infraspinatus muscles were frying in napalm, and his brachioradialis tendons seemed ready to pop.