Definition of IGM. 1. : a class of immunoglobulins of high molecular weight including the primary antibodies that are released into the blood early in the immune response to be replaced later by IgG and that are highly efficient in binding complement.2.: an antibody of the class IgM.ADVERTISEMENT.efinition of IGM. 1. : a class of immunoglobulins of high molecular weight including the primary antibodies that are released into the blood early in the immune response to be replaced later by IgG and that are highly efficient in binding complement. 2. : an antibody of the class IgM. ADVERTISEMENT.
Calcium hydroxide is an Arrhenius base. You can see that it consists of a cation (we know calcium should be a cation because it is a metal on the left side of the periodic table bonded to elements on the right side). The anions are hydroxyl groups. #Ca(OH)_2->Ca^(2+)+2OH^-#.
Arrhenius Acid Definition: An Arrhenius acid is a substance that when added to water increases the number of H + ions in the water.en Mills. Arrhenius Acid Definition: An Arrhenius acid is a substance that when added to water increases the number of H + ions in the water. The H + ion is also associated with the water molecule in the form of a hydronium ion, H 3 O + and follows the reaction: