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node

 - 16 dictionary results
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node

  [nohd]
Use node in a Sentence
–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.
a. a joint in a stem.
b. 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, esp. the plane of the ecliptic or of the celestial equator. Compare ascending node, descending node.
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. nodus.
Origin:
1565–75; < L nōdus knot
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knot

1  [not] noun, verb, knot⋅ted, knot⋅ting.
–noun
1. an interlacing, twining, looping, etc., of a cord, rope, or the like, drawn tight into a knob or lump, for fastening, binding, or connecting two cords together or a cord to something else.
2. a piece of ribbon or similar material tied or folded upon itself and used or worn as an ornament.
3. a group or cluster of persons or things: a knot of spectators.
4. the hard, cross-grained mass of wood at the place where a branch joins the trunk of a tree.
5. a part of this mass showing in a piece of lumber, wood panel, etc.
6. Anatomy, Zoology. a protuberance or swelling on or in a part or process, as in a muscle.
7. a protuberance in the tissue of a plant; an excrescence on a stem, branch, or root; a node or joint in a stem, esp. when of swollen form.
8. any of various fungal diseases of trees characterized by the formation of an excrescence, knob, or gnarl.
9. an involved, intricate, or difficult matter; complicated problem.
10. Nautical.
a. a unit of speed equal to one nautical mile or about 1.15 statute miles per hour.
b. a unit of 47 feet 3 inches (13.79 meters) on a log line, marked off by knots.
c. a nautical mile.
11. a bond or tie: the knot of matrimony.
12. Also called joint, node. Mathematics. in interpolation, one of the points at which the values of a function are assigned.
–verb (used with object)
13. to tie in a knot; form a knot in.
14. to secure or fasten by a knot.
15. to form protuberances, bosses, or knobs in; make knotty.
–verb (used without object)
16. to become tied or tangled in a knot.
17. to form knots or joints.
—Idiom
18. tie the knot, Informal. to marry: They will tie the knot in November.
Origin:
bef. 1000; (n.) ME knot(te), OE cnotta; c. D knot, G knoten to knit; (v.) ME, deriv. of the n.

Related forms:
knotless, adjective
knotlike, adjective

Synonyms:
3. company, band, crew, gang, crowd. 7. lump, knob, gnarl. 9. perplexity, puzzle, conundrum.

nodal point

 
–noun Optics.
either of two points on the axis of a lens or other optical system, determined by extending an incident oblique ray and the corresponding refracted ray to the axis for the pair of rays that are parallel outside the optical system.
Also called node.

Origin:
1835–45

panel point

 
–noun Engineering.
a joint between two or more members of a truss.
Also called node.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To node
knot 1   (nŏt)   
n.  

    1. A compact intersection of interlaced material, such as cord, ribbon, or rope.

    2. A fastening made by tying together lengths of material, such as rope, in a prescribed way.

    3. A hard place or lump, especially on a tree, at a point from which a stem or branch grows.

    4. The round, often darker cross section of such a lump as it appears on a piece of cut lumber. Also called node.

    5. Nautical A division on a log line used to measure the speed of a ship.

    6. Abbr. kn. or kt. A unit of speed, one nautical mile per hour, approximately 1.85 kilometers (1.15 statute miles) per hour.

    7. A distance of one nautical mile.

  2. A decorative bow of ribbon, fabric, or braid.

  3. A unifying bond, especially a marriage bond.

  4. A tight cluster of persons or things: a knot of onlookers.

  5. A feeling of tightness: a knot of fear in my stomach.

  6. A complex problem.

    1. A hard place or lump, especially on a tree, at a point from which a stem or branch grows.

    2. The round, often darker cross section of such a lump as it appears on a piece of cut lumber. Also called node.

    3. Nautical A division on a log line used to measure the speed of a ship.

    4. Abbr. kn. or kt. A unit of speed, one nautical mile per hour, approximately 1.85 kilometers (1.15 statute miles) per hour.

    5. A distance of one nautical mile.

  8. A protuberant growth or swelling in a tissue: a knot in a gland.

    1. Nautical A division on a log line used to measure the speed of a ship.

    2. Abbr. kn. or kt. A unit of speed, one nautical mile per hour, approximately 1.85 kilometers (1.15 statute miles) per hour.

    3. A distance of one nautical mile.

v.   knot·ted, knot·ting, knots

v.   tr.

  1. To tie in or fasten with a knot or knots.

  2. To snarl or entangle.

  3. To cause to form a knot or knots.

v.   intr.

  1. To form a knot or knots.

  2. To become snarled or entangled.


[Middle English, from Old English cnotta.]
Usage Note: In nautical usage knot is a unit of speed, not of distance, and has a built-in meaning of "per hour." Therefore, a ship would strictly be said to travel at ten knots (not ten knots per hour).
node   (nōd)   
n.  

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

    1. Botany The point on a stem where a leaf is attached or has been attached; a joint.

    2. See knot1.

    3. Either of two diametrically opposite points at which the orbit of a planet intersects the ecliptic.

    4. Either of two points at which the orbit of a satellite intersects the orbital plane of a planet.

  3. Physics A point or region of virtually zero amplitude in a periodic system.

  4. Mathematics The point at which a continuous curve crosses itself.

  5. Computer Science A terminal in a computer network.

  6. Astronomy

    1. Either of two diametrically opposite points at which the orbit of a planet intersects the ecliptic.

    2. Either of two points at which the orbit of a satellite intersects the orbital plane of a planet.


[Middle English, lump in the flesh, from Latin nōdus, knot; see ned- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

knot 
O.E. cnotta "intertwining of ropes, cords, etc.," from P.Gmc. *knuttan- (cf. Low Ger. knütte, Du. knot, O.H.G. knoto, Ger. Knoten, perhaps also O.N. knutr "knot, knob"). Fig. sense of "difficult problem" was in O.E. (cf. Gordian knot). Symbolic of the bond of wedlock, c.1225. As an ornament of dress, first attested 1400. Meaning "thickened part or protuberance on tissue of a plant" is from 1398. The nautical unit of measure (1633) is from the practice of attaching knotted string to the log line. The ship's speed can be measured by the number of knots that play out while the sand glass is running.
"The distance between the knots on the log-line should contain 1/120 of a mile, supposing the glass to run exactly half a minute." [Jorge Juan and Antonio de Ulloa, "A Voyage to South America" 1760]
The verb meaning "to tie in a knot" is from 1547. Knot-hole is from 1726. Knothead "stupid person" is from 1940.

node 
1572, "a knot or complication," from L. nodus "knot." Originally borrowed c.1400 in L. form, meaning "lump in the flesh." Meaning "point of intersection" (originally of planetary orbits with the ecliptic) first recorded 1665.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: knot
Pronunciation: 'nät
Function: noun
1 : an interlacing of the parts of one or more flexible bodies (as threads or sutures) in alump to prevent their spontaneous separation —see SURGEON'S KNOT
2 : a usually firm or hardlump, swelling, or protuberance in or on a part of the body or a bone or process knot in a gland> knots> —compare SURFER'S KNOT —knot verb knot·ted; knot·ting

Main Entry: nodal point
Function: noun
: either of two points so located on the axis of a lens or optical system that any incident ray directed through one will produce aparallel emergent ray directed through the other

Main Entry: node
Pronunciation: 'nOd
Function: noun
1 a : a pathological swelling or enlargement (as of a rheumatic joint) b : abody 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
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

knot (nŏt)
n.

  1. A compact intersection of interlaced material, as of cord, ribbon, or rope.

  2. A protuberant growth or swelling in a tissue, such as a gland.

nodal point n.
One of the two points in a compound optical system, located so that a light ray directed through the first point will leave the system through the second point, parallel to its original direction. Also called axial point.

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.
Cite This Source
Science Dictionary
node   (nōd)  Pronunciation Key 

  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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Computing Dictionary

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

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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