Noun musculus pectoralis has 1 sense
  1. pectoral, pectoral muscle, pectoralis, musculus pectoralis, pecs - either of two large muscles of the chest
    --1 is a kind of skeletal muscle, striated muscle
    --1 is a part of thorax, chest, pectus
    --1 has particulars:
     pectoralis major, musculus pectoralis major, greater pectoral muscle; pectoralis minor, musculus pectoralis minor, smaller pectoral muscle
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