n. a type of cell present in the body that is able to absorb bacteria and other small cells. (p_____)
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n.a type of small white blood cell with one round nucleus , found especially in the lymphatic system. (L_____)
adj. (especially of a disease) lasting for a long time. (c______)
n. any substance (such as a toxin or other foreign substances) that stimulates an immune response in the body (especially the production of antibodies). ( a______)
n. any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response. (a_______)