Dictionary:

node

  (nōd)

1. A knob, knot, protuberance, or swelling.
2. 1. Botany. The point on a stem where a leaf is attached or has been attached; a joint.
   2. See knot¹ (sense 7).
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.]

(1) In a communications system, a node is a network junction or connection point. Every terminal, computer, hub and switch is a node.

(2) In database management, a node is an item of data that can be accessed by two or more routes.

In Program Evaluation and Review Technique (PERT) circle in a network representing the beginning and ending of activities. A node symbolizes an event.

A swelling or protuberance.

1. In electric wiring, a junction point at which several distribution or wiring conductors come together.
2. A panel point.

A swelling or protuberance.

Pl. nodi; a small mass of tissue in the form of a swelling, knot or protuberance, either normal or pathological.

• n. of Aschoff and Tawara — atrioventricular node.
• cutaneous n. — an elevated, solid lump, without a necrotic center, about 0.5 inch diameter, caused by acute or chronic inflammation, with an unbroken surface. Called also cutaneous nodule.
• Flack's n. — see sinoatrial node.
• hemal n's — see hemal node.
• Keith's n., Keith–Flack n. — see sinoatrial node.
• lymph n. — see lymph node.
• n's of Ranvier — constrictions of myelinated nerve fibers at regular intervals of about 1 mm at which the myelin sheath is absent and theaxon is enclosed only by Schwann cell processes.
• sinoatrial (S-A) n. — see sinoatrial node.
• n. of Tawara — atrioventricular node.

(DOD) A location in a mobility system where a movement requirement is originated, processed for onward movement, or terminated.

A place on a stem where leaves or branches are attached. See also internode.

Node may mean:

• Node (autonomous system), behaviour for a ordinary differential equation near a critical point
• Node (botany), the place on a plant stem where a leaf is attached
• Node (physics), a spatial locus along a standing wave where the wave has minimal amplitude
• Node (telecommunications), an originating or terminating point of information transfer in a telecommunications network
• Node (networking), a device connected to a network, such as a computer or router
• Node (computer science), a basic unit used to build data structures, such as linked lists and tree data structures
• Node (circuits), a region in an electrical circuit where there is no change in potential
• Transport node
• Node (computer gaming), a particular style of adventure game

Node may also be:

• Artificial neuron, a basic unit in neural networks
• Vertex, one of the components of a graph
• A value that's used for function interpolation

Nodal may refer to:

• Nodal (protein), a protein involved in TGF beta signaling.

See also

• In other languages, the words for some meanings of "node" and "knot" are the same.

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Dansk (Danish)
n. - knude, (zool) knæ, led, bladfæste

Nederlands (Dutch)
knooppunt, knobbel, knoest, ingewikkelde situatie, punt van minste storing (golf), punt zonder stroom/voltage (elektronica)

Français (French)
n. - (Astron, Ling, Bot, Phys, Math) n¯ud, (Méd) nodosité

Deutsch (German)
n. - Knoten, Ganglienknoten, Schwingungsknoten

Ελληνική (Greek)
n. - κόμβος, κόνδυλος, όζος (μίσχου), ρόζος, (αστρον.) δεσμός, (Η/Υ) στοιχείο δικτύου

Italiano (Italian)
nodo

Português (Portuguese)
n. - nó (m), tumor (m) (Patol.), nodo (m) (Anat.)

Русский (Russian)
узел

Español (Spanish)
n. - nodo, nudo

Svenska (Swedish)
n. - knut(a), knöl, nod

中文（简体） (Chinese (Simplified))
结, 瘤, 节, 茎节

中文（繁體） (Chinese (Traditional))
n. - 結, 瘤, 節, 莖節

한국어 (Korean)
n. - 복잡한 조직의 중심점, 매듭

日本語 (Japanese)
n. - こぶ, 節, 交点, 節点, 中核

العربيه (Arabic)
‏(الاسم) قطب, طرف, نهايه‏

עברית (Hebrew)
n. - ‮בליטה, קשר, מפרק (בצמח), חור בעטיפה השומנית של עצב, גוף קטן של רקמה שונה בגוף, למשל בלוטה, נקודה בה חוצה מסלול כוכב-לכת את מסלול השמש, נקודה של הפרעה מזערית במערכת גלים, נקודה של אפס זרם או מתח חשמלי, נקודה בה קו חוצה את עצמו, נקודת השיא של עקומה, רכיב ברשת מחשבים‬

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