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: 13176 Search : far
geodetic latitude
  ورونای ِ زمین‌سنجیک   
varunâ-ye zamin-sanjik

Fr.: latitude géodésique   

The → acute angle between the → geodetic vertical and the → geodetic equator.

geodetic; → latitude.

geodetic longitude
  درژنای ِ زمین‌سنجیک   
derežnâ-ye zamin-sanjik

Fr.: longitude géodésique   

The angle between the plane of the → geodetic meridian and the plane of of the geodetic meridian through the site of the → Airy transit circle at the Royal Greenwich Observatory.

geodetic; → longitude.

geodetic meridian
  نیمروزان ِ زمین‌سنجیک   
nimruzân-e zamin-sanjik

Fr.: méridien géodésique   

The → ellipse through the point in question which passes through the → geodetic poles.

geodetic; → meridian.

geodetic parallel
  پراسوی ِ زمین‌سنجیک   
parâsu-ye zamin-sanjik

Fr.: parallèle géodésique   

Any of the small circles on the → reference ellipsoid parallel to the → geodetic equator.

geodetic; → parallel.

geodetic pole
  قطب ِ زمین‌سنجیک   
qotb-e zamin-sanjik

Fr.: pôle géodésique   

Any of the interaction points of the axis of revolution of the → reference ellipsoid with its surface.

geodetic; → pole.

geodetic precession
  پیشایان ِ کهین‌رهی   
pišâyân-e kehinrahi

Fr.: précession géodésique   

A → relativistic effect on the precession motion of a gravitational system due to the → curvature of the → space-time. When a body revolves around a primary, the → rotation axis of the orbiting body follows the curvature of spece-time. Over time the space-time warping causes the spin axis to precess. In the case of the Earth-Moon system, this means a small → direct motion of the → equinox along the → ecliptic, amounting to 1''.915 per century. The geodetic precession is given by: ψg = (3/2) k2 (1 - e) n, where k is the → constant of aberration (in radians), e the → eccentricity of the Earth and n the mean angular orbital motion of the Earth (in arcsec/cy). Also called → Einstein-de Sitter effect and → geodesic precession.

geodetic; → precession

geodetic refraction
  شکست ِ زمین‌سنجیک   
šekast-e zamin-sanjik

Fr.: réfraction géodésique   

The limiting case of → astronomical refraction when the light path is entirely within the Earth's atmosphere.

geodetic; → refraction.

geodetic vertical
  هجین ِ زمین‌سنجیک   
hajin-e zamin-sanjik

Fr.: vertical géodésique   

The direction defined by the → normal to the → reference ellipsoid at the point in question.

geodetic; → vertical.

geodetic zenith
  سرسوی ِ زمین‌سنجیک   
sarsu-ye zamin-sanjik

Fr.: zénith géodésique   

The intersection of the prolongation of the outward → normal to the → reference ellipsoid at the point in question with the → celestial sphere.

geodetic; → zenith.

geographic
  زمین‌نگاریک   
zaminnegârik

Fr.: géographique   

Of or pertaining to → geography.

geography; → -ic.

geographic coordinate system
  راژمان ِ هماراهای ِ زمین‌نگاریک   
râžmân-e hamârâhâ-ye zaminnegârik

Fr.: système de coordonnées géographiques   

A → ccordinate system on the surface of the Earth that defines every location by a set of numbers and letters, indicating the → latitude and → longitude.

geographic; → coordinate; → system.

geographic latitude
  ورونای ِ زمین‌نگاریک   
varunâ-ye zaminnegârik

Fr.: latitude géographique   

A synonym for → geodetic latitude or → astronomical latitude.

geographic; → latitude.

geographic north pole
  قطب ِ هودر ِ زمین‌نگاریک   
qotb-e hudar-e zaminnegârik

Fr.: pôle nord géographique   

north pole.

geographic; → north; → pole.

geographic south pole
  قطب ِ دشتر ِ زمین‌نگاریک   
qotb-e daštar-e zaminnegârik

Fr.: pôle sud géographique   

south pole.

geographic; → south; → pole.

geography
  زمین‌نگاری   
zaminnegâri (#)

Fr.: géographie   

The science dealing with the areal differentiation of the Earth's surface, as shown in the character, arrangement, and interrelations over the world of such elements as climate, elevation, soil, vegetation, population, land use, industries, or states, and of the unit areas formed by the complex of these individual elements (Dictionary.com).

geo-; → -graphy.

geoid
  زمین‌وار   
zaminvâr (#)

Fr.: géoïde   

The form of the → Earth obtained by taking average sea level surface and extending it across the continents. In other words, the → equipotential surface ("mean sea level") of the Earth's → gravitational field. The geoid is considered to represent the true physical figure of the Earth, in contrast to the → reference ellipsoid, which is idealized geometrical figure of the Earth.

geo-; → -oid.

geologic
  زمین‌شناختی   
zaminšenâxti (#)

Fr.: géologique   

Of, pertaining to, or based on → geology. Also geological.

From geolog(y), → geology, + → -ic.

geologic time
  زمان ِ زمین‌شناختی   
zamân-e zaminšenâxti (#)

Fr.: temps géologique   

The long span of time from the end of the formation of Earth during which our planet underwent its major transformations.

geologic; → time.

geology
  زمین‌شناسی   
zaminšenâsi (#)

Fr.: géologie   

The scientific study of the composition, structure, and physical history of the Earth.

geo- + → -logy.

geomagnetic
  زمین‌مغناتیسی، زمین‌مغناتی   
zamin-meqnâtisi, zamin-meqnâti

Fr.: géomagnétique   

Of or pertaining to → geomagnetism.

geo-; → magnetic.

<< < -es -it -sc 201 951 abe abs abs aca acc acc aco act ada adh ado aer aft air Alf alg alk alp Alt alt amb ana And ang ani ann ant ant ant apo app app Apu arc arg Arn art ass ast ast ast atm ato att aur aut avo azi bac bal bar bar bat Bea Bel bet bia big bin bio Bir bla bla blo Blu bol Boo bou box bre Bri bro bur cal cal Can cap car Car cat cau cel cen cen cha Cha cha che Chi chr cir cir civ cla clo clo CMB coa coe coh col col col com com com com com com com com Com con con con con con con con con con con con con coo cor cor cor Cos cos cos cou cou cra cri cro cry cul cur cyc D l dar dat day dea dec dec dec def def deg Del Den dep der det deu dew dic dif dif dil dip dir dis dis dis dis dis diu dog Dop dou Dra Dsc dus dwa dyn Dys Ear ecc eco edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ eru eth Eur eve exa exc exe exi exo exp ext ext ext fab fai Fan fea fem fer fie fil fir fir fla fli flu foc for for for fra fre fre fri fun fuz gal gal gal Gam gau Gau gen geo geo geo geo Gib glo gov gra gra gra gra gre gro Gui H-a hal Ham har Hay hea hei hel Hel her het hie hig hoa hom hor hot Hub Hug hur hyd hyd hyl hyp ice ide ima ima imp imp inc inc ind ine inf inf inf ing inn ins ins int int int int int int int int inv inv ion iro Isl iso iso Jab jet Jov Jup Kar Kep kil Kip Kra Lag Lam Lan Lar las law lea Leg Leo lev lig lim lin lin lin lit loc loc log Lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal map mas mas mat Mau mea mea med Men mer Mes Met met mic mic Mie mil min Mir mix mod mol mom Moo mor mov mul mur n-b nan nat nea neg Ner neu new New NGC noc nom non non nor nor nuc nuc nul nut obj obl obs occ oct off old one ope opp opt opt orb ord org Ori osc oth ove Owl P-s Pal par par par par Pas pat pec pen per per per per per Pha pha pho pho pho phy pie pix Pla pla pla pla Pli Poi pol pol pol pol por pos pos pow pre pre pre pre pri pri pri pro pro pro pro pro pro pro pub pul pyc qua qua qua qua qui rad rad rad rad rad rad rai ran rar Ray rea Rea rec rec red red ref ref reg rel rel rel ren res res res res ret rev Ric rig rin roc roo rot rot rur S5- Sal sat sca sca Sch sci Scu sec sec sed sel sel sem seq set sha she sho sid sie sil sim sin sit sky slo sno sod sol sol sol sol son sou spa spa spe spe spe spe sph spi spo squ sta sta sta sta ste ste ste Sti sto str str sub sub sub sul sup sup sup sup sur sur syl syn sys tal Tay tel ten ter tex the the the the Tho thr tid tim Tit too Tor tra tra Tra tra Tra tri Tri tru tub tur two Typ ult ult unc uni uni uni upl ura uti val var vec vel ver Ver vie vir vis vis vol W-R war wav wav wea Wei wha wid win WN3 Wol wri xen yok zen zij > >>