An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 1 Search : descending node
descending node
  گره ِ فرودشی   
gereh-e forudeši

Fr.: nœud descendant   

The point in an orbit where the orbiting body crosses a reference plane, such as the ecliptic or the celestial equator, going from north to south. → ascending node.

Descending, from descend, from L. descendere "to go down," from → de- "down" + scandere "to climb;" Node, from L. nodus "knot."

Gereh "knot," from Mid.Pers. grih "knot." Forudeši adj. of forudeš, verbal noun of forudidan "to descend, go down," (Mid.Pers. frôtihitan "to descend"), from forud "down, downward," Mid.Pers. frôt "down, downward," O.Pers. fravata "forward, downward," Skt. pravát- "a sloping path, the slope of a mountain."