[nəʊd], (Noun)

Definitions:
- a point in a network or diagram at which lines or pathways intersect or branch
(e.g: the intersections of two or more such arteries would clearly become major nodes of traffic and urban activity)

- the part of a plant stem from which one or more leaves emerge, often forming a slight swelling
(e.g: the stem is cut midway between nodes)

- a lymph node or other structure consisting of a small mass of differentiated tissue
(e.g: infection in these nodes may lead to backache)

- a point at which the amplitude of vibration in a standing wave system is zero


Phrases:

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