a centering point of component parts: The electrical connections all ran through a central node.
a knot, protuberance, or knob: protruding nodes on a bicycle seat.
Anatomy. a knotlike mass of tissue: lymph node.
Pathology. a circumscribed swelling.
a joint in a stem.
a part of a stem that normally bears a leaf.
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.
a data point or cluster within a tree or other information structure, as defined by its relationship to another data point or cluster: 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.
Mathematics. knot1 (def. 12).
Geometry. a point on a curve or surface at which there can be more than one tangent line or tangent plane.
Physics. a point, line, or region in a standing wave at which there is relatively little or no vibration.
Linguistics. an element of a tree diagram that represents a constituent of a linguistic construction.
Optics. nodal point.
Engineering. panel point.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use node in a sentence
Just how many fake nodes would be needed in order to pull off a successful Sybil attack against Tor is not known.
“Active” search nodes depend on noise sources that can be as simple as an explosive squib.Tomorrow’s Stealthy Subs Could Sink America’s Navy | Bill Sweetman | May 12, 2014 | THE DAILY BEAST
The tumor in his colon had spread to four of his lymph nodes and penetrated the bowel wall.
This is their cook book on how to stage an intervention or military operation starts with knocking out communications nodes.U.S. Spies Said No Russian Invasion of Ukraine—Putin Disagreed | Eli Lake, Christopher Dickey | March 1, 2014 | THE DAILY BEAST
The bone marrow of the dead soldiers was depleted dramatically, and their lymph nodes had shriveled away.Sarin, Nitrogen Mustard, Cyanide & More: All About Chemical Weapons | Kent Sepkowitz | August 26, 2013 | THE DAILY BEAST
If there are only fifteen power nodes, then how come there were so many different Gods and Goddesses among the Greeks?Pagan Passions | Gordon Randall Garrett
The nodes of the moon's orbit are not stationary, but have a daily retrograde motion of 3´ 10·64´´.
Combining this with the expression for the two nodes, the Hindu myth has taken the following form.
This relation might be briefly expressed by saying that the Dragon—that is of the nodes—causes the eclipse.
There were four open WiFi nodes visible from the board room and I told it to change between them at random intervals.Little Brother | Cory Doctorow
British Dictionary definitions for node
a knot, swelling, or knob
the point on a plant stem from which the leaves or lateral branches grow
Also called: crunode maths a point at which two branches of a curve intersect, each branch having a distinct tangent
maths linguistics one of the objects of which a graph or a tree consists; vertex
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
any natural bulge or swelling of a structure or part, such as those that occur along the course of a lymphatic vessel (lymph node)
a finger joint or knuckle
computing an interconnection point on a computer network
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for node
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.
A point on a stem where a leaf is or has been attached.
A swelling or lump on a tree; a knob or knot.
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. Compare antinode.
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.
Either of the two points at which the orbit of an artificial satellite intersects the equatorial plane of the planet it is orbiting.
Computer Science A computer or a peripheral that is connected to a network.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.