dysgammaglobulinemia
noun
dys·gam·ma·glob·u·li·ne·mia
variants:
or chiefly British dysgammaglobulinaemia \ ˌdis-ˌgam-ə-ˌgläb-yə-lə-ˈnē-mē-ə 
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Medical Definition of dysgammaglobulinemia
: a disorder involving abnormality in structure or frequency of gamma globulins — compare agammaglobulinemia