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English definition of “erector (muscle)”

erector (muscle)

noun [C]     /ɪˈrek.təˌmʌs.l/ US  /-tɚˌ-/ specialized
a muscle that can pull something, such as the human spine, into a vertical positionSubstances and structures in the body
(Definition of erector (muscle) noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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