Node

Node, nōd, n. a knot: a knob: a knot or entanglement: (astron.) one of the two points in which the orbit of a planet intersects the plane of the ecliptic: (bot.) the joint of a stem: the plot of a piece in poetry: (math.) a point at which a curve cuts itself, and through which more than one tangent to the curve can be drawn: a similar point on a surface, where there is more than one tangent-plane.—adjs. Nod′al, pertaining to nodes; Nodāt′ed, knotted.—ns. Nodā′tion, the act of making knots: the state of being knotted; Node′-coup′le, a pair of points on a surface at which one plane is tangent; Node′-cusp, a peculiar kind of curve formed by the union of a node, a cusp, an inflection, and a bitangent.—adjs. Nod′ical, pertaining to the nodes: from a node round to the same node again; Nodif′erous (bot.), bearing nodes; Nō′diform; Nod′ose, full of knots: having knots or swelling joints: knotty.—n. Nodos′ity.—adjs. Nod′ular, of or like a nodule; Nod′ulāted, having nodules.—ns. Nod′ule, Nod′ulus, a little knot: a small lump.—adjs. Nod′uled, having nodules or little knots or lumps; Nodulif′erous; Nod′uliform; Nod′ulose, Nod′ulous (bot.), having nodules or small knots: knotty.—ns. Nod′ulus:—pl. Nod′ulī; Nō′dus:—pl. Nō′dī. [L. nodus (for gnodus), allied to Knot.]