lymph node

noun

: any of the rounded masses of lymphoid tissue that are surrounded by a capsule of connective tissue, are distributed along the lymphatic vessels, and contain numerous lymphocytes which filter the flow of lymph passing through the node

Examples of lymph node in a Sentence

Recent Examples on the Web
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Most adults including pregnant people either have no symptoms or experience mild, flu-like illness such as fever, fatigue, swollen lymph nodes, sore throat, and muscle or joint aches. Dr. Megan Yanny, Boston Herald, 31 May 2026 First symptoms often include extreme tiredness, headaches, swollen lymph nodes and muscle aches. Tereza Shkurtaj, PEOPLE, 30 May 2026 Genes replace guesswork For decades, oncologists have relied on tumor size, grade, lymph node involvement, and other clinical factors when deciding whether to recommend chemotherapy. Neetika Walter, Interesting Engineering, 30 May 2026 Through this technology, doctors can visualize a highly detailed reconstruction of tumors and surrounding anatomical structures—including blood vessels, lymph nodes and nerves—before entering the operating room. Jose Luis Gonzalez Rodriguez, Forbes.com, 18 May 2026 See All Example Sentences for lymph node

Word History

First Known Use

1892, in the meaning defined above

Time Traveler
The first known use of lymph node was in 1892

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Cite this Entry

“Lymph node.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lymph%20node. Accessed 5 Jun. 2026.

Kids Definition

lymph node

noun
: one of the rounded masses of tissue occurring along the lymphatic vessels and containing lymphocytes which filter the flow of lymph

called also lymph gland

Medical Definition

lymph node

noun
: any of the rounded masses of lymphoid tissue that are surrounded by a capsule of connective tissue, are distributed along the lymphatic vessels, and contain numerous lymphocytes which filter the flow of lymph passing through the node

called also lymph gland

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