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Medical Dictionary

1

challenge

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transitive verb chal·lenge \ˈchal-ənj\

Medical Definition of challenge

challenged; challenging

  1. :  to administer a physiological and especially an immunologic challenge to (an organism or cell)




2

challenge

noun chal·lenge

Medical Definition of challenge

  1. :  the process of provoking or testing physiological activity by exposure to a specific substance; especially :  a test of immunity by exposure to an antigen after immunization against it





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