Definitions for "Immune system"
the system that protects your body against disease and infection
A collection of cells and proteins that work to protect against foreign organisms or substances in the body.
The body's defense mechanism against infections. CD4 cells (also called T helper lymphocytes or T cells) are a part of the immune system.
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a team of free agents on a far, far grander scale
a set of mechanisms for distinguishing between self and non-self, and eliminating (some of) the latter
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Immunity ImmunoGlobulin