Immunoglobulin D, an antibody.

I just heard of an inside branch called Insane GD in the pin at Alaska.

It's going down -- used to indicate the happening of a certain event!

I Go Die: Nigerian Sang. Usualyy means something is so funny one might die laughing. Can be said with LWKMD (Laugh wan kill me die). Uber funny.

an acronym for "In game dollars"

As a verb, the process of putting one's head up one's own ass while (or before) placing both feet in one's mouth. In short, self-beclowning to such an epic level that it has, u [..]

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A type of immunoglobulin, or antibody, that is found on the plasma membrane of immature B cells and also secreted in the blood. Its role is not yet clear.

(n) one of the five major classes of immunoglobulins; present in blood serum in small amounts

An Immunoglobulin which accounts for less than 1% of Plasma Immunoglobulin. It is found on the Membrane of many circulating B Lymphocytes.

a class of antibodies found in small amount; very little is known about the function of IgD

Immunoglobulin D. The class of antibodies found only on the surface of B lymphocytes, which function as antigen receptors to initiate differentiation of B-cells into plasma cells.

Two types of myeloma which occur less frequently. IgM