Human gamma globulin and Immune serum globulin

Human gamma globulin noun - A plasma protein containing the immunoglobulins that are responsible for immune responses.

Immune serum globulin and human gamma globulin are semantically related. In some cases you can replace phrase "Immune serum globulin" with "Human gamma globulin", this phrases are similar.

Immune serum globulin noun - A class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response.

Human gamma globulin and immune serum globulin are semantically related. You can use "Human gamma globulin" instead a noun phrase "Immune serum globulin".