1
a
: a pathological swelling or enlargement (as of a rheumatic joint)
b
: a discrete mass of one kind of tissue enclosed in tissue of a different kind
2
: an entangling complication (as in a drama) : predicament
3
: either of the two points where the orbit of a planet or comet intersects the ecliptic
also
: either of the points at which the orbit of an earth satellite crosses the plane of the equator
4
a
: a point, line, or surface of a vibrating body or system that is free or relatively free from vibratory motion
b
: a point at which a wave has an amplitude of zero
5
a
: a point at which subsidiary parts originate or center
b
: a point on a stem at which a leaf or leaves are inserted
c
: a point at which a curve intersects itself in such a manner that the branches have different tangents
d
Examples of node in a Sentence
the doctor examined the node on my knee before deciding it was the result of arthritis
Recent Examples on the Web
Even when the classical system was scaled up to thousands of nodes, the much smaller quantum system still performed better in multi-day forecasts.
—
Rupendra Brahambhatt, Interesting Engineering, 4 Apr. 2026
Iraqi militias form a key node in Iran’s network of regional proxies opposed to the US and Israel, and Baghdad also relies on Tehran for supplies of natural gas.
—Patrick Sykes, Fortune, 4 Apr. 2026
Could one imagine immersive experiences distributed across geographies in ways that connect local nodes of creation in networks that blend physical and virtual presence?
—Daniel Birnbaum, Artforum, 2 Apr. 2026
The Necka personal massager features eight deep-kneading nodes designed to simulate shiatsu finger pressure, along with multiple speed levels, heat settings and an auto shut-off timer.
—Tory Johnson, ABC News, 2 Apr. 2026
See All Example Sentences for node
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Rupendra Brahambhatt, Interesting Engineering, 4 Apr. 2026
Iraqi militias form a key node in Iran’s network of regional proxies opposed to the US and Israel, and Baghdad also relies on Tehran for supplies of natural gas.
—Patrick Sykes, Fortune, 4 Apr. 2026
Could one imagine immersive experiences distributed across geographies in ways that connect local nodes of creation in networks that blend physical and virtual presence?
—Daniel Birnbaum, Artforum, 2 Apr. 2026
The Necka personal massager features eight deep-kneading nodes designed to simulate shiatsu finger pressure, along with multiple speed levels, heat settings and an auto shut-off timer.
—Tory Johnson, ABC News, 2 Apr. 2026
See All Example Sentences for node
Cite this Entry
“Node.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/node. Accessed 7 Apr. 2026.
Copy CitationKids Definition
node
noun1
a
: a thickened or swollen enlargement (as of a joint with rheumatism)
b
: a mass of tissue in the body resembling a knot
2
: a point on a stem at which a leaf is inserted
Medical Definition
node
noun1
a
: a pathological swelling or enlargement (as of a rheumatic joint)
b
: a body part resembling a knot
especially
: a discrete mass of one kind of tissue enclosed in tissue of a different kind see atrioventricular node, lymph node
2
: a point, line, or surface of a vibrating body that is free or relatively free of vibratory motion
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