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English definition of “semispinalis”

semispinalis

noun [C]     /ˌsem.i.spiˈnɑːl.ɪs/ US  /ˌsem.i.spɑɪˈnæl.ɪs/ specialized
one of three muscles of the upper spine and chest that attach to the back of the headSubstances and structures in the body
(Definition of semispinalis noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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