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Medical Definition of Lymph node

Lymph node: One of many small, bean-shaped organs located throughout the lymphatic system. The lymph nodes are important in the function of the immune response and also store special cells that can trap cancer cells or bacteria that are traveling through the body through the lymph. Also known as lymph gland.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=4213
Last Editorial Review: 5/13/2016

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