hypogammaglobulinemia

noun

hy·​po·​gam·​ma·​glob·​u·​lin·​emia

variants or chiefly British hypogammaglobulinaemia

-ˌgam-ə-ˌgläb-yə-lə-ˈnē-mē-ə 

: a deficiency of gamma globulins and especially antibodies in the blood

also : a state of immunological deficiency characterized by this

hypogammaglobulinemic adjective

or chiefly British hypogammaglobulinaemic

-ˈnē-mik