An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : depression
depression
  ۱) نشیب ِ افق؛ ۲) فروبار؛ ۳) نشیب‌لاخ   
1) našib-e ofoq; 2) forubâr; 3)

Fr.: dépression   

1) Navigation:dip.
2) Meteorology: An area of low atmospheric pressure.
3) Geology: An area of the Earth's crust sunken or depressed below the surrounding area, formed by various mechanisms.

Depression, verbal noun of depress, from O.Fr. depresser, from L.L. depressare, frequentative of pressus, p.p. of deprimere "press down," from → de- "down" + premere "to press."

1) Našib-e ofoq, from našib "declivity, descent; lowness of ground, slope of any place" (Mid.Pers. nišēp "declivity, (astrology) dejection," Av. *nixšvaēpā-, xšvaēpā- "bottom, rear") + ofoqhorizon. 2) Forubâr, from foru "down, downward; below; beneath," → de- + bâr "load, pressure, charge," → charge. 3) Našiblâx, from našib, as above, in item 1, + -lâx place suffix.

solar depression
  نشیب ِ خورشید   
nešib-e xoršid

Fr.: dépression solaire   

The → angle between the → sea horizon, the → center of → Earth, and the center of the → solar disk.

solar; → depression.

Wilson depression
  نشیب ِ ویلسون   
našib-e Wilson

Fr.: dépression de Wilson   

The depression on the → Sun's → photosphere associated with → sunspots and involving the → Wilson effect. The measured depression values vary between about 700 and 2,000 km.

Wilson effect; → depression.