English noun: immune system | |||
1. | immune system (body) a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response | ||
Broader (hypernym) | system | ||
Part holonym | bone marrow, lymph gland, lymph node, marrow, node, RES, reticuloendothelial system, thymus, thymus gland | ||