node

American  

[nohd] / noʊd /

noun

nodes plural

1. a centering point of component parts.

   The electrical connections all ran through a central node.

2. a knot, protuberance, or knob.

   protruding nodes on a bicycle seat.

3. Anatomy. a knotlike mass of tissue.

   lymph node.

4. Pathology. a circumscribed swelling.

5. Botany.

   1. a joint in a stem.

   2. a part of a stem that normally bears a leaf.

6. Computers.

   1. a connection point in a network that is a processing device with an assigned address, as a router, computer terminal, peripheral device, or mobile device.

      nodes on the internet;

      In a well-designed network, the failure of one computer node does not cause a failure in the network.

   2. a data point or cluster within a tree or other information structure, as defined by its relationship to another data point or cluster: The nodes in an artificial neural network are connected to each other to send and receive information, much like the neurons of the human brain.

      The directory node governs several constituent files.

      The nodes in an artificial neural network are connected to each other to send and receive information, much like the neurons of the human brain.

7. Mathematics. knot.

8. Geometry. a point on a curve or surface at which there can be more than one tangent line or tangent plane.

9. Physics. a point, line, or region in a standing wave at which there is relatively little or no vibration.

10. Astronomy. either of the two points at which the orbit of a heavenly body intersects a given plane, especially the plane of the ecliptic or of the celestial equator.

11. Linguistics. an element of a tree diagram that represents a constituent of a linguistic construction.

12. Optics. nodal point.

13. Engineering. panel point.

14. nodus.

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node British  

/ nəʊd /

noun

1. a knot, swelling, or knob

2. the point on a plant stem from which the leaves or lateral branches grow

3. physics a point at which the amplitude of one of the two kinds of displacement in a standing wave has zero or minimum value. Generally the other kind of displacement has its maximum value at this point See also standing wave Compare antinode

4. Also called: crunode.  maths a point at which two branches of a curve intersect, each branch having a distinct tangent

5. maths linguistics one of the objects of which a graph or a tree consists; vertex

6. astronomy either of the two points at which the orbit of a body intersects the plane of the ecliptic. When the body moves from the south to the north side of the ecliptic, it passes the ascending node ; moving from the north to the south side, it passes the descending node

7. anatomy

   1. any natural bulge or swelling of a structure or part, such as those that occur along the course of a lymphatic vessel ( lymph node )

   2. a finger joint or knuckle

8. computing an interconnection point on a computer network

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node Scientific  

/ nōd /

1. Anatomy A small mass or lump of body tissue that either occurs naturally, as in the case of lymph nodes, or is a result of disease.

2. Botany

   1. A point on a stem where a leaf is or has been attached.

   2. A swelling or lump on a tree; a knob or knot.

3. Physics A point or region of a vibrating or oscillating system, such as the standing wave of a vibrating guitar string, at which the amplitude of the vibration or oscillation is zero. Harmonic frequencies in oscillating systems always have nodes.

4. Physics Compare antinode

5. Astronomy

   1. Either of the two points on the celestial sphere at which the path of a revolving body, such as the Moon, a planet, or a comet, intersects the ecliptic. ◆ The point at which the body traverses from south of the ecliptic to north is the ascending node. The opposite point, when the body traverses the ecliptic from north to south, is the descending node.

   2. Either of the two points at which the orbit of an artificial satellite intersects the equatorial plane of the planet it is orbiting.

6. Computer Science A computer or a peripheral that is connected to a network.

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Other Word Forms

Noun Inflected Forms

• nodes
  plural

Etymology

Origin of node

First recorded in 1420–45; Middle English, from Latin nōdus “knot”

Explanation

A node is a point of connection. Technically, a traffic intersection is a node since multiple roads connect at that point. Another type of node is a round swelling. Some are abnormal, like a node you discover on your knee, but others, such as a lymph node, are a normal part of your immune system. You can also find a node on a plant: it’s the swelling on the stem marking the spot where leaves emerge. Computer techs know that a node can also be a piece of equipment — like your cable modem — in a computer network. In a sense, that kind of node is also a connecting point — like the traffic intersection.

Example Sentences

See Examples For:

node nodes

They acknowledged support from the University of Sydney node of Microscopy Australia, and the work received funding from the Australian Research Council.

From Science Daily ● Jul. 19, 2026

"It's not simply a switch you turn on or off. A port needs activity as a logistics node – otherwise it's no longer a port. It's a real dilemma."

From BBC ● Jul. 9, 2026

Meanwhile, Wall Street has pinned much of Intel’s turnaround on the success of its upcoming 14A process node in attracting customers to its foundry.

From MarketWatch ● Jun. 16, 2026

While Samsung is advancing its 2-nanometer node, the analysts say it is closer to TSMC’s 3-nanometer process in practice and therefore still trails TSMC’s process technologically.

From The Wall Street Journal ● Jun. 11, 2026

Redundant mirror servers were located all over the world, but they were all linked to the main node in Columbus.

From "Ready Player One: A Novel" by Ernest Cline

Wedbush’s Bryson said that higher chip prices and Intel’s commentary on yield improvements of various manufacturing nodes signal its margins could be well above Wall Street’s estimates.

From MarketWatch ● Jul. 22, 2026

By 11 p.m., the nodes of Kyiv’s subway had turned into underground towns, with regulars, newbies, friendly banter and occasional disputes.

From The Wall Street Journal ● Jul. 3, 2026

In practice, this means the system can withstand many small, random disruptions but remains highly susceptible to targeted shocks affecting critical nodes.

From Science Daily ● Jun. 20, 2026

He then had the new type of radiotherapy, targeting his prostate and surrounding lymph nodes, which he said was "easier to deal with".

From BBC ● Jun. 9, 2026

Holly swiveled horizontal and pointed the docking nodes at the lights.

From "Artemis Fowl" by Eoin Colfer