node

node
noun
(technical)(技)

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
■a piece of equipment, such as a computer or peripheral, attached to a network
（网络中的）终端（设备）
■(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
■(Mathematics)a point at which a curve intersects itself
(数)交叉点
■(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
(Botany)the part of a plant stem from which one or more leaves emerge, often forming a slight swelling or knob
(植)节
(Anatomy)a lymph node or other structure consisting of a small mass of differentiated tissue
(剖)淋巴结；结节
(Physics & Mathematics)a point at which the amplitude of vibration in a standing wave system is zero
(物理，数)波节
■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）
■a point of zero current or voltage
（电流或电压）零点

派生
nodal
adjective
语源

late Middle English (denoting a knotty swelling or a protuberance): from Latin nodus 'knot'

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