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

It was found in her blood vessels and lymphatic system, and 12 of the 34 lymph nodes were cancerous. —Maria Morava, MSNBC Newsweek, 23 Aug. 2025

She was diagnosed with pre-mediastinal large B-cell non-Hodgkin's lymphoma — a type of cancer that affects the lymphatic system — in September 2024. —Toria Sheffield, People.com, 17 Aug. 2025

Additionally, massage stimulates the lymphatic system, which plays a crucial role in removing cellular waste and regulating inflammation. —Daryl Austin, USA Today, 7 Aug. 2025

The Oliver Lab at Feinberg studies the biological development of the lymphatic system. —Kate Armanini, Chicago Tribune, 5 Aug. 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