Definition of sternocleidomastoid in English:

sternocleidomastoid

Syllabification: ster·no·clei·do·mas·toid
Pronunciation: /ˌstərnōˌklīdōˈmastoid
 
/
(also sternocleidomastoid muscle)

noun

Anatomy
Each of a pair of long muscles that connect the sternum, clavicle, and mastoid process of the temporal bone and serve to turn and nod the head.
More example sentences
  • Often, the muscles used to maintain body posture are affected, namely the muscles in the neck, shoulders, and pelvic girdle, including the upper trapezius, scalene, sternocleidomastoid, levator scapulae, and quadratus lumborum.
  • There are thirty-two segments devoted to a particular muscle, such as temporalis, masseter, sternocleidomastoid, biceps brachii and so on.
  • The submandibular glands are located within a triangle bounded by the sternocleidomastoid muscle, the posterior belly of the digastric muscle, and the body of the mandible.

Definition of sternocleidomastoid in:

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Word of the day internecine
Pronunciation: ˌintərˈnesēn
adjective
destructive to both sides in a conflict