Denoting or exhibiting immunoreaction.
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im·mu·no·re·ac·tive -rē-'ak-tiv adj reacting to particular antigens or haptens <serum \immunoreactive insulin> <\immunoreactive lymphocytes>
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im·mu·no·re·ac·tive (im″u-no-re-akґtiv) exhibiting immunoreaction.Medical dictionary. 2011.