lymphatic system

noun

: the part of the circulatory system that is concerned especially with scavenging fluids and proteins which have escaped from cells and tissues and returning them to the blood, with the phagocytic removal of cellular debris and foreign material, and with the immune response and that consists especially of lymphoid tissue, lymph, and lymph-transporting vessels

called also lymph system

Examples of lymphatic system in a Sentence

Recent Examples on the Web

The stage 4 cancer had spread outside Suprun's lymphatic system and formed a tumor in his lung. —Alyce Collins, MSNBC Newsweek, 28 June 2025

In holistic practices, castor oil packs are commonly used to support the body's lymphatic system, which protects the body from infection and maintains fluid balance, as well as lymphatic drainage. —Lindsay Curtis, Health, 25 June 2025

Hodgkin lymphoma is a cancer of the lymphatic system, the American Cancer Society explains; an outside donor is only considered when a transplant of the patient's own stem cells doesn't work, per the ACS. —Cara Lynn Shultz, People.com, 13 June 2025

The lymphatic system is part of the body's germ-fighting and disease-fighting immune system. —Kirsty Hatcher, People.com, 5 June 2025

Word History

First Known Use

1830, in the meaning defined above

Rhymes for lymphatic system

• cryptosystem
• ecosystem
• intersystem
• multisystem
• photosystem
• subsystem

Kids Definition

lymphatic system

noun

: the part of the circulatory system that consists of special tissue (as of the lymph nodes and tonsils), lymph, lymph-transporting vessels, and the thymus and spleen and is concerned especially with returning fluids and proteins back to the blood and with destroying material (as bacteria) foreign to the body

called also lymph system

Medical Definition

lymphatic system

noun

variants also lymph system or lymphoid system

: the part of the circulatory system that is concerned especially with collecting fluids and proteins that have escaped from cells and tissues and returning them to the blood, with the phagocytic removal of cellular debris and foreign material, and with immune responses, that overlaps and parallels the system of blood vessels in function and shares some constituents with it, and that consists mainly of the thymus, spleen, tonsils, lymph, lymph nodes, lymphatic vessels, lymphocytes, and bone marrow where stem cells differentiate into precursors of B cells and T cells