| any of the glandlike masses of tissue in the lymphatic vessels containing cells that become lymphocytes. |

| lymph node n. Any of the small bodies located along the lymphatic vessels, particularly at the neck, armpit, and groin, that filter bacteria and foreign particles from lymph fluid. During infection, lymph nodes may become swollen with activated lymphocytes. Also called lymph gland. |
lymph node n.
Any of the small, oval or round bodies, located along the lymphatic vessels, that supply lymphocytes to the bloodstream and remove bacteria and foreign particles from the lymph. Also called lymph gland, lymphoglandula, lymphonodus.
| lymph node
A bean-shaped mass of tissue found at intervals along the vessels of the lymphatic system. Lymph nodes filter foreign substances from the blood. |