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English definition of “sternocleidomastoid”

sternocleidomastoid

noun [C] uk   /ˌstɜːn.əʊˌklaɪd.əʊˈmæst.ɔɪd/ us    /ˌstɜr.noʊ.klɑɪ.doʊˈmæs.tɔɪd/ (also sternomastoid) specialized
a muscle in the neck that helps to move the headThe head
(Definition of sternocleidomastoid from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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