node
/nəʊd/noun
technical <技>
1
- a point in a network or diagram at which lines or pathways intersect or branch（网络或图表中的）节点, 交叉点。
1.1
- a piece of equipment, such as a computer or peripheral, attached to a network（网络中的）终端（设备）。
1.2
- (in generative grammar) a vertex or end point in a tree diagram（生成语法中树形图的）顶点, 终点。
1.3
- Mathematics a point at which a curve intersects itself【数】结点, 叉点。
1.4
- Astronomy either of the two points at which a planet's orbit intersects the plane of the ecliptic or the celestial equator【天文】交点。
2
- Botany the part of a plant stem from which one or more leaves emerge, often forming a slight swelling or knob【植】节。
3
- Anatomy a lymph node or other structure consisting of a small mass of differentiated tissue【剖】淋巴结; 结节。
4
- Physics & Mathematics a point at which the amplitude of vibration in a standing wave system is zero【物理, 数】波节。
4.1
- a point at which a harmonic function has the value zero, especially a point of zero electron density in an orbital调和函数零点（尤指轨道中电子密度零点）。
4.2
- a point of zero current or voltage（电流或电压）零点。
派生词
nodal
adjective词源
late Middle English (denoting a knotty swelling or a protuberance)： from Latin nodus 'knot'.