節,結節,瘤 ; 節點,(在INTERNET網絡中的任何一個站點,都可稱為節點)
node /ˈnod/ 名詞
節點; 節( 點 ); 網點; 結點
1. A knot, a knob; a protuberance; a swelling.
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. --Dunglison. (h) Mus One of the fixed points of a sonorous string, when it vibrates by aliquot parts, and produces the harmonic tones; nodal line or point. (i) Zool. A swelling.
Ascending node Astron., the node at which the body is passing northerly, marked with the symbol
Descending node, the node at which the body is moving southwardly, marked thus
Line of nodes, a straight line joining the two nodes of an orbit.
n 1: a connecting point at which several lines come together
2: any thickened enlargement [syn: knob, thickening]
3: (physics) the point of minimum displacement in a periodic
system [ant: antinode]
4: (astronomy) a point where an orbit crosses a plane
5: the source of lymph and lymphocytes [syn: lymph node, lymph
6: any bulge or swelling of an anatomical structure or part
7: (computer science) any computer that is hooked up to a
computer network [syn: client, guest]