An example of a node is a knot in a twisted rope.
- a knot; knob; swelling
- a point of concentration; central point
- Anat. a knotty, localized swelling; protuberance
- Astron. either of the two points at which the orbit of a celestial body intersects a reference plane, as the ecliptic
- Bot. that part, or joint, of a stem from which a leaf starts to grow
- Geom. the point where a continuous curve crosses or meets itself
- Physics the point, line, or surface of a vibrating object, as a string, that is virtually free of vibration
Origin of nodeClassical Latin nodus, a knot: see net
- a. A knob, knot, protuberance, or swelling.b. Medicine A small, well-defined mass of tissue that is either normal or pathological, as a lymph node or a node at an arthritic joint.
- a. A point or area where two lines, paths, or parts intersect or branch off: “The nodes, or branching points, are usually demarcated by sets of one or more new, evolutionary characters that typify all taxa” ( Pat Shipley )b. A focal point or a point of interaction: “Inside the hospital, she became a node of gossip, despite being unable to communicate in the usual way” ( Oliver Sacks )
- a. Botany The point on a stem where a leaf is attached or has been attached; a joint.b. See knot1.
- Physics A point or region of virtually zero amplitude in a wave or periodic system.
- Mathematics The point at which a continuous curve crosses itself.
- Computers A terminal in a computer network.
- Astronomy a. Either of two diametrically opposite points at which the orbit of a planet intersects the ecliptic.b. Either of two points at which the orbit of a satellite intersects the orbital plane of a planet.
Origin of nodeMiddle English lump in the flesh from Latin nōdus knot ; see ned- in Indo-European roots.
- New Oxford Dictionary of English
node - Computer Definition
- A junction point at which two or more circuits interconnect in a data network. A bridge, for example, interconnects two or more segments of a local area network (LAN). See also bridge, circuit, LAN, and network.
- In a switched network, a switching point that comprises a point of interconnection for circuits, a data switch, and control facilities. In the public switched telephone network (PSTN), for example, a great many circuits terminate in a central office (CO) and a tandem office, each of which comprises one or more switches and Signaling System 7 (SS7) network control logic, multiplexers, a wide variety of other devices. See also access node, CO, PSTN, service node, SS7, switch, and tandem switch.
- A device such as a station, bridge, computer, repeater, server, switch, or other device that connects to a network.
- In the IBM Systems Network Architecture (SNA), a physical device such as a computer, communications processor (e.g., FEP), terminal controllers, or terminal. See also SNA.
Any devices attached to a telecommunications network such as cell phones, computers, personal digital assistants (PDAs), and other network appliances. In the IP domain, any device having an IP address is called a node. Servers in a clustering setting, such as database clusters or Web farms (large installations of Web servers), are also called nodes.
About, Inc. Node. [Online, 2004.] About, Inc. Website. http:// compnetworking.about.com/library/glossary/bldef-node.htm.
(1) See Node.js.
(2) In a communications system, a node is a network junction or connection point. Every terminal, computer, hub and switch is a node.
(3) In database management, a node is an item of data that can be accessed by two or more routes.
(4) In the Document Object Model (DOM), which exposes HTML and XML content to an application or script, every element, every attribute of that element, and each piece of textual content for every attribute is considered a node. See DOM.
(5) In computer graphics, a node is an endpoint of a graphical element.
(6) In multiprocessing systems, a node can be a single processor or system. In MPP, it is one processor. In SMP, it is one computer system with two or more processors and shared memory.