sternocleidomastoid

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noun ster·no·clei·do·mas·toid \ˌstər-nə-ˌklī-də-ˈma-ˌstȯid\
variants: or

sternocleidomastoid muscle

Definition of sternocleidomastoid

  1. :  a thick superficial muscle on each side of the neck that arises by one head from the first segment of the sternum and by a second from the inner part of the clavicle, that inserts into the mastoid process and occipital bone, and that acts especially to bend, rotate, flex, and extend the head —called also sternomastoid

Origin and Etymology of sternocleidomastoid

New Latin sternocleidomastoides, from stern- + cleid- + mastoides mastoid


First Known Use: 1831


Medical Dictionary

1

sternocleidomastoid

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noun ster·no·clei·do·mas·toid \ˌstər-nō-ˌklīd-ə-ˈmas-ˌtȯid\

Medical Definition of sternocleidomastoid

  1. :  a thick superficial muscle on each side that arises by one head from the first segment of the sternum and by a second from the inner part of the clavicle, that inserts into the mastoid process and occipital bone, and that acts especially to bend, rotate, flex, and extend the head

Illustration of sternocleidomastoid


2

sternocleidomastoid

adjective ster·no·clei·do·mas·toid

Medical Definition of sternocleidomastoid

  1. :  of, relating to, supplying, or being a sternocleidomastoid <the sternocleidomastoid artery>


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