sternocleidomastoid
[ stur-noh-klahy-duh-mas-toid ]
/ ˌstɜr noʊˌklaɪ dəˈmæs tɔɪd /
adjective
of, relating to, or involving the sternum, the clavicle, and the mastoid process.
noun
a thick muscle on each side of the neck, the action of which assists in bending the head and neck forward and sideways.
Words nearby sternocleidomastoid
sternmost,
sterno,
sterno-,
sternoclavicular,
sternoclavicular angle,
sternocleidomastoid,
sternocleidomastoid vein,
sternocostal,
sternocostal ligament,
sternodynia,
sternoid
Medical definitions for sternocleidomastoid
sternocleidomastoid
[ stûr′nō-klī′də-măs′toid ]
adj.
Relating to or characterizing the sternum, the clavicle, and the mastoid process.
n.
A muscle with origin from the anterior surface of the episternum and from the sternal end of the clavicle, with insertion into the mastoid process and the superior nuchal line, with nerve supply from the accessory nerve, and whose action turns the head obliquely to the opposite side and flexes the neck and extends the head when both sides act together.
sternomastoid