nod·​ule | \ ˈnä-(ˌ)jül How to pronounce nodule (audio) \

Definition of nodule

: a small mass of rounded or irregular shape: such as
a : a small rounded lump of a mineral or mineral aggregate
b : a swelling on a leguminous root that contains symbiotic bacteria
c : a small abnormal knobby bodily protuberance (such as a tumorous growth or a calcification near an arthritic joint)

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Synonyms for nodule


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Examples of nodule in a Sentence

The examination revealed a nodule on his lung. a nodule on the leaf indicated that a worm had laid eggs there
Recent Examples on the Web Fish with round worms may exhibit lumps or nodules, inflammation, dead/dying tissue, and cysts. Joe Genzel, Outdoor Life, "10 Common Parasites and Diseases Found in Game Fish (and What You Need to Know About Them)," 27 May 2020 In the days prior, Jackson had been mentally preparing himself to have a cancerous nodule removed from one of his lungs. Alton Strupp, The Courier-Journal, "Louisville vet found himself all alone in isolation facility after positive COVID-19 test," 24 Apr. 2020 Two months earlier, according to the case report, the man apparently noticed a small, pink nodule on the toe—about five millimeters in diameter at the time. Maggie O'neill,, "This Man's Toe Started Bleeding After Someone Stepped On It—But It Turned Out to Be a Symptom of Melanoma," 6 Nov. 2019 The intestines of typhoid patients often had inflamed or ulcerated nodules known as glands of Peyer or Peyer’s patches, named after a 17th-century Swiss anatomist. Timothy Kent Holliday, Smithsonian Magazine, "What an 1836 Typhus Outbreak Taught the Medical World About Epidemics," 21 Apr. 2020 The software is in use at hospitals in China, and being evaluated by clinics in Europe, and the US, primarily to detect potentially cancerous lung nodules. Tom Simonite, Wired, "Chinese Hospitals Deploy AI to Help Diagnose Covid-19," 26 Feb. 2020 The nodules had been observed in the patient for three years, the case report says. Maggie O'neill,, "The Growths on This Child’s Tongue Led to an Extremely Rare Medullary Thyroid Cancer Diagnosis," 17 July 2019 The board also said in its order that records from the Centers for Disease Control and Prevention showed the clinic contacted the CDC on November 5, 2018, and reported that 16 patients had abscess nodules nearly a month after receiving the flu shot. Rebekah Riess And Hollie Silverman, CNN, "Kentucky doctor reprimanded after his wife improperly handled flu vaccines and wrote prescriptions under his name," 23 July 2019 To review: Cystic acne forms when a nodule one to two millimeters under the skin's surface becomes severely irritated and inflamed. Halie Lesavage, Harper's BAZAAR, "How to Treat Cystic Acne for Clearer Skin," 31 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nodule.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of nodule

15th century, in the meaning defined above

History and Etymology for nodule

Middle English, from Latin nodulus, diminutive of nodus

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Time Traveler for nodule

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The first known use of nodule was in the 15th century

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Statistics for nodule

Last Updated

5 Jun 2020

Cite this Entry

“Nodule.” Dictionary, Merriam-Webster, Accessed 12 Jul. 2020.

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More Definitions for nodule


How to pronounce nodule (audio)

English Language Learners Definition of nodule

technical : a small lump on a part of the body or on the root of a plant


nod·​ule | \ ˈnä-jül How to pronounce nodule (audio) \

Kids Definition of nodule

: a small roundish lump or mass


nod·​ule | \ ˈnäj-(ˌ)ü(ə)l How to pronounce nodule (audio) \

Medical Definition of nodule

: a small mass of rounded or irregular shape: as
a : a small abnormal knobby bodily protuberance (as a tumorous growth or a calcification near an arthritic joint)
b : the nodulus of the cerebellum

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