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node

[nohd] /noʊd/
noun
1.
a knot, protuberance, or knob.
2.
a centering point of component parts.
3.
Anatomy. a knotlike mass of tissue:
lymph node.
4.
Pathology. circumscribed swelling.
5.
Botany.
  1. a joint in a stem.
  2. a part of a stem that normally bears a leaf.
6.
Mathematics, knot (def 12).
7.
Geometry. a point on a curve or surface at which there can be more than one tangent line or tangent plane.
8.
Physics. a point, line, or region in a standing wave at which there is relatively little or no vibration.
9.
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.
10.
Linguistics. an element of a tree diagram that represents a constituent of a linguistic construction.
11.
Optics. nodal point.
12.
Engineering, panel point.
13.
Origin
1565-1575
1565-75; < Latin nōdus knot
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for node
  • The scientific discipline of ecology has thus been, in some sense, a key node in an ecology of scientific disciplines.
  • Every node in the power grid should be awake, responsive and in communication with every other node.
  • For the rubber band above, a node must be at both ends.
  • Here, the lymphocytes are either filtered out or added to the contents of the node.
  • Make it a robust node of culture and knowledge production.
  • To win, this network must be isolated and ripped apart, node by node.
  • Certain lymph node infections and skin lesions can be surgically removed.
  • Each car will act as a node on a giant peer-to-peer network.
  • Yes, the guy running the exit node can read the bytes that come in and out there.
  • On the old boys' network, he had become a central node.
British Dictionary definitions for node

node

/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.
(maths) Also called crunode. 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
See also nod off, nod out
Word Origin
C16: from Latin nōdus knot
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
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Word Origin and History for node
n.

early 15c., "a knot or lump," from Latin nodus "knot" (see net (n.)). Originally borrowed c.1400 in Latin form, meaning "lump in the flesh." Meaning "point of intersection" (originally of planetary orbits with the ecliptic) first recorded 1660s.

Online Etymology Dictionary, © 2010 Douglas Harper
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node in Medicine

node (nōd)
n.

  1. A knob, knot, protuberance, or swelling.

  2. A protuberant growth or swelling in a tissue.

  3. A knuckle or finger joint.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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node in Science
node
  (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. 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.

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

  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. Compare antinode.

  4. 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.

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


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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node in Technology


1. A point or vertex in a graph.
2. network node.
3. A hypertext document.

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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