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2. Specifically: (a)
(Astron.) One of the two points where the orbit of a
planet, or comet, intersects the ecliptic, or the orbit of a
satellite intersects the plane of the orbit of its primary.
(b) (Bot.) The joint of a stem, or the
part where a leaf or several leaves are inserted.
(c) (Dialing) A hole in the gnomon of a
dial, 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. (d) (Geom.) The
point at which a curve crosses itself, being a double point of the
curve. See Crunode, and Acnode.
(e) (Mech.) The point at which the lines
of a funicular machine meet from different angular directions; --
called also knot. W. R. Johnson.
(f) (poet.) The knot, intrigue, or plot
of a piece. (g) (Med.) 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.


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