Use idol in a sentence. LINK / CITE ADD TO WORD LIST. noun. An idol in the shape of a golden calf. An idol in the shape of a golden calf. The definition of an idol is a false god or an object that is adored or worshipped.An example of an idol is a rock that people pray to.se idol in a sentence. LINK / CITE ADD TO WORD LIST. noun. An idol in the shape of a golden calf. An idol in the shape of a golden calf. The definition of an idol is a false god or an object that is adored or worshipped. An example of an idol is a rock that people pray to.
Immunoglobulin A (IgA, also referred to as sIgA) is an antibody that plays a critical role in mucosal immunity.
Immunoglobulin D, also called IgD, is an uncommon antibody that is produced by  immature B cells. The exact purpose of this antibody is unknown, though it has something to do with the humoral immune response in humans and other animals. It is similar in function to immunoglobulin M, which is also produced by B cells. Like many other immunoglobulins, IgD is made up of four chains of amino acids. Two heavy and two light chains are connected by a hinge in the middle.