Definition of bolus noun from the Oxford Advanced American Dictionary

     

    bolus

     noun
    noun
    NAmE//ˈboʊləs//
     
     
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  1. 1(medical) a single amount of a drug that is given at one time synonym dose
  2. 2(technology) a small, round mass of substance, especially chewed food that is swallowed
See the Oxford Advanced Learner's Dictionary entry: bolus