Each of the small oval bodies of the lymphatic system, distributed along the lymphatic vessels, that are clustered in the armpits, groin, neck, chest and abdomen. They act as filters, with an internal honeycomb of connective tissue filled with lymphocytes and macrophages that collect and destroy bacteria, viruses and foreign matter from lymph. When the body is fighting an infection, these lymphocytes multiply rapidly and produce a characteristic swelling of the lymph nodes.
A knot, knob, protuberance or swelling.
A point along a standing wave where the wave has minimal amplitude.
The point at which the lines of a funicular machine meet from different angular directions; — called also knot.
The point where the orbit of a planet, as viewed from the Sun, intersects the ecliptic. The ascending and descending nodes refer respectively to the points where the planet moves from South to North and N to S; their respective symbols are ☊ and ☋.
A similar point on a surface, where there is more than one tangent-plane.
A hard concretion or incrustation which forms upon bones attacked with rheumatism, gout, or syphilis; sometimes also, a swelling in the neighborhood of a joint.
A hole in the gnomon of a sundial, through which passes the ray of light which marks the hour of the day, the parallels of the Sun's declination, his place in the ecliptic, etc.
The word of interest in a KWIC, surrounded by left and right cotexts.
The knot, intrigue, or plot of a dramatic work.
A region of an electric circuit connected only by (ideal) wires (i.e the voltage between any two points on the same node must be zero).
The point at which a curve crosses itself, being a double point of the curve. See crunode and acnode.
A leaf node.
A computer or other device attached to a network.
A vertex or a leaf in a graph of a network, or other element in a data structure.