What does node mean?
A node is a distinct point, element, or device connected with other elements in a larger network or system. The meaning depends on context: in computing, a node may be a computer on a network or a point in a data structure; in graph theory, it is a vertex joined to other vertices; and in anatomy, it may be a lymph node. The word also refers to points on plant stems and important positions in physical systems such as orbits. In general use, “node” suggests connection, coordination, and membership in a structured whole. It is especially useful in technical writing because one term can accurately describe any distinct participating element while emphasizing how that element relates to the rest of the system.
A point of connection or a distinct element within a network, structure, or system.
"The link between the two nodes failed shortly after midnight."
Its precise meaning varies by field, including a network device, graph vertex, anatomical lymph node, and botanical stem junction.
To form, produce, or serve as a node or point of connection.
"The analysis node at the end of each branch groups similar findings."
This use is most common in technical and scientific writing.
Use the plural for multiple separate points, devices, or elements in a network or structure.
"The two nodes exchanged data automatically throughout the night."
From a Latin word meaning “knot,” node became the building block of networks: the English word for a connected point now powers our language for computing, biology, and graph theory.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of node
Node comes through Old English from Latin nodus, meaning “knot” or “joint.” The Latin word developed from a wider family of forms associated with knots, joints, and nodular growths, giving rise to related words such as nodule and nodal. The sense “point of connection” arose by analogy with the way strands or branches are joined at a knot.
How node is actually used
The word is common in computing, mathematics, and biology. In general contexts, “node” can sound technical and usually implies a point that connects to, coordinates, or participates in a larger structure.