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. 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.

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Origin:
1565–75; < Latin nōdus knot

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Nodes is always a great word to know.

So is ninnyhammer. Does it mean:

the offspring of a zebra and a donkey.

a fool or simpleton; ninny.

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Etymonline

Word Origin & History

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.

American Heritage

Medical Dictionary

node (nōd)
n.

A knob, knot, protuberance, or swelling.
A protuberant growth or swelling in a tissue.
A knuckle or finger joint.

American Heritage

Science Dictionary

node (nōd) Pronunciation Key

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

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