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
Count two nodes from the base of the spike and cut the spike just above the second node.
—
Leanne Potts, Better Homes & Gardens, 15 Feb. 2026
Once at the second point, the Dragon will briefly pause its approach and then proceed directly to a docking with the zenith or space-facing side of the Harmony node.
—Josh Dinner, Space.com, 14 Feb. 2026
The moves reinforce the Gulf’s role as a central node in global data networks, not just a transit route.
—Manal Albarakati, semafor.com, 13 Feb. 2026
This approach aligns with broader trends in smart living, where screens shift from passive devices to interactive nodes.
—Jason Phillips, USA Today, 11 Feb. 2026
See All Example Sentences for node
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Leanne Potts, Better Homes & Gardens, 15 Feb. 2026
Once at the second point, the Dragon will briefly pause its approach and then proceed directly to a docking with the zenith or space-facing side of the Harmony node.
—Josh Dinner, Space.com, 14 Feb. 2026
The moves reinforce the Gulf’s role as a central node in global data networks, not just a transit route.
—Manal Albarakati, semafor.com, 13 Feb. 2026
This approach aligns with broader trends in smart living, where screens shift from passive devices to interactive nodes.
—Jason Phillips, USA Today, 11 Feb. 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 18 Feb. 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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