nodule
noun
nod·ule
ˈnä-(ˌ)jül 
: 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)
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
Biden's representatives said the former president had a routine physical last week and doctors discovered a small nodule in his prostate.
—
Averi Harper, ABC News, 20 May 2025
Now there are about seven cancerous nodules on her lungs.
—Kristen Jordan Shamus, USA Today, 19 May 2025
Biden, who is 82 years old, underwent additional tests last week after a prostate nodule was discovered.
—Brittney Melton, NPR, 19 May 2025
Biden was evaluated after a small nodule was found in the prostate, which necessitated further evaluation, his office said last week.
—Ed O'Keefe, CBS News, 19 May 2025
See All Example Sentences for nodule
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Averi Harper, ABC News, 20 May 2025
Now there are about seven cancerous nodules on her lungs.
—Kristen Jordan Shamus, USA Today, 19 May 2025
Biden, who is 82 years old, underwent additional tests last week after a prostate nodule was discovered.
—Brittney Melton, NPR, 19 May 2025
Biden was evaluated after a small nodule was found in the prostate, which necessitated further evaluation, his office said last week.
—Ed O'Keefe, CBS News, 19 May 2025
See All Example Sentences for nodule
Cite this Entry
“Nodule.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nodule. Accessed 15 Jun. 2025.
Copy CitationKids Definition
nodule
noun
nod·ule
ˈnäj-(ˌ)ü(ə)l
1
: a small rounded mass
manganese nodules on the ocean floor
2
: a swelling on the root of a plant of the legume family that contains nitrogen-fixing bacteria
nodular
adjective
ˈnäj-ə-lər
Medical Definition
nodule
noun
nod·ule
ˈnäj-(ˌ)ü(ə)l
: 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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