- ster|no|clei|do|mas|toid
- ster|no|clei|do|mas|toid «STEHR noh KLY doh MAS toyd», adjective.connecting the breastbone (sternum), the clavicle, and the mastoid process of the temporal bone (applied to each of two muscles of the neck that serve to turn and nod the head).
Useful english dictionary. 2012.