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: 12937 Search : far
apparent sidereal day
  روز ِ اختری ِ پدیدار   
ruz-e axtari-ye padidâr

Fr.: jour sidéral apparent   

The time interval between two successive → upper transits of the → true equinox of date.

apparent; → sidereal; → day.

apparent sidereal time
  زمان ِ اختری ِ پدیدار   
zamân-e axtari-ye padidâr

Fr.: temps sidéral apparent   

The → mean sidereal time corrected for the → nutation and shift in the obliquity of the ecliptic that occurs as a result of the Moon's gravitational effect. Apparent sidereal time differs from mean sidereal time in that the → true vernal equinox point is used.

apparent; → sidereal; → time.

apparent solar day
  روز ِ خورشیدی ِ پدیدار   
ruz-e xoršidi-ye padidâr

Fr.: jour solaire vrai   

The duration of one rotation of the Earth on its axis (→ Earth's rotation), with respect to the → apparent Sun. It is measured by successive transits of the apparent Sun over the lower branch of a → meridian.

apparent; → solar day.

apparent solar time
  زمان ِ خورشیدی ِ پدیدار   
zamân-e xoršidi-ye padidâr

Fr.: temps solaire apparent   

The time based on the motion of the → apparent Sun and kept by dividing the day into 24 equal hours.

apparent; → solar; → time.

apparent Sun
  خورشید ِ پدیدار   
xoršid-e padidâr

Fr.: Soleil apparent   

The → true Sun as seen by an observer on Earth. The term "apparent Sun" is used in contrast to → mean Sun, which refers to an average of the Sun's position). See also: → apparent solar time and → mean solar time.

apparent; → Sun.

apparent visual magnitude
  برز ِ دیدگانی ِ پدیدار   
borz-e didegâni-ye padidâr

Fr.: magnitude visuelle apparente   

Apparent magnitude in the visual wavelengths, around 5600 Å. → visual magnitude.

apparent; → visual; → magnitude.

apparition
  پدیداری، پدیدارش   
padidâri (#), padidâreš

Fr.: apparition   

A period during which a → planet, → asteroid, or → comet is observable, generally between two successive → conjunctions of the body with the Sun.

M.E. apparicioun, from O.Fr. apparition, from L.L. appritionem "an appearance," from L. apparitus, p.p. of apparere "to appear."

Padidâri, n. from → padidâr + -i; padidâreš, verbal n. from *padidâridan.

apperception
  بر‌آگرتش   
barâgerteš

Fr.: aperception   

In psychology of education, the fundamental process in acquiring knowledge, and the part played by existing knowledge.

From Fr. aperception, from N.L. apperceptionem, from ap- variant of → ad- before p + → perception.

From prefix bar- "on, upon, up" (Mid.Pers. abar; O.Pers. upariy "above; over, upon, according to;" Av. upairi "above, over," upairi.zəma- "located above the earth;" cf. Gk. hyper- "over, above;" L. super-; O.H.G. ubir "over;" PIE base *uper "over") + âgerteš, → perception.

application
  آتاهش، کاربرد   
âtâheš, kârbord (#)

Fr.: application   

1) General: The act of applying to a particular purpose or use.
2) Computers: A program that performs a specific function for the user, as contrasted with an environment or operating system. Some examples are Microsoft Windows, Microsoft Word, and Adobe Photoshop. The word "application" is used because each program has a specific application for the user.

Verbal noun of → apply.

application software
  نرم‌افزار ِ آتاهشی   
narm-afzâr-e âtâheši

Fr.: logiciel d'application   

A software with a specific function, such as a word processor or game. Contrast with operating system software.

application; → software.

applied physics
  فیزیک ِ کاربردی   
fizik-e kârbordi (#)

Fr.: physique appliquée   

A set of topics in physics intended for a particular or practical use. Applied physics programs are usually interfaces between pure physics and technology.

Past participle of → apply; → physics.

apply
  آتاهیدن، به کار بردن   
âtâhidan, bé kâr bordan (#)

Fr.: appliquer   

To make use of; to put to use especially for some practical purpose.
To put into operation or effect.
To lay or spread on; to be placed or remain on.
To make a request especially in the form of a written → application.

From M.E. ap(p)lien, from O.Fr. aploiier "apply, use, attach," from L. applicare "to attach to, connect;" figuratively, "devote (oneself) to, give attention," from → ad- "to" + plicare "to fold," → explain.

Âtâhidan, from â- intensive/nuance prefix, + tâh "fold, plait, ply" (on the model of L., as above, → explain); Mid.Pers. tâg "piece, part" + -idan infinitive suffix.
Bé kâr bordan, from "to; for; in; on; with; by; according to," → ad hoc; kâr, → work, bordan "to carry, bear, conduct, take," → range.

approach
  ۱) نزدیدن، نزدیک شدن؛ ۲) نزدش   
1) nazdidan, nazdik šodan; 2) nazdeš

Fr.: 1) approche; 2) s'approcher, approcher   

1) (v.intr.) To come near or nearer, as in space or time.
(v.tr.) To come or go near or nearer to in quality, character, time, or condition.
2) (n.) The act of drawing near; nearness or close approximation; the method used or steps taken in dealing with or accomplishing.

M.E. approchen, from O.Fr. aprochier, from L. appropiare, from ad- "to" + propius "nearer," comparative of prope "near".

1) Nazdidan from nazd "near," Mid.Pers. nazd, Av. nas- "to come near, approach, reach," nazdišta- "nearest, next," nazdyo "nearer to," compare with Skt. nas- "to approach, to reach" + -idan "infinitive forming suffix".
2) Nazdeš, from nazd, nazidan + -eš "noun forming suffix."

approval
  آسند   
âsand

Fr.: approbation   

The act of approving; approbation; formal permission or sanction.

approve; → -al.

approve
  آسندیدن   
âsandidan

Fr.: approuver   

To confirm or sanction formally; ratify.

M.E., from O.Fr. aprover "approve, agree to," from L. approbare "to assent to as good, regard as good," from → ad- "to" + probare "to try, test something (to find if it is good)," from probus "honest, genuine," → prove.

Âsandidan, from â- + sandidan, as in pasandidan (with pati-) "to cherish, approve;" ultimately from Proto-Ir. *sand- "to appear, seem good;" cf. Av. sənd- "to appear, seem (good);" Manichean Mid.Pers. shyn "apparent, prominent, splendid;" Mid.Pers. passand "to approve;" Khotanese sad- "to appear, seem, show;" Skt. chand- "to appear, please;" L. censere "to appraise, value, judg" (Cheung 2007).

approximate
  ۱) نزدین؛ ۲) نزدینیدن   
1) nazdin (#); 2) nazdinidan

Fr.: 1) approximatif; 2) s'approcher   

1) Nearly exact or correct; near or approaching a certain state, condition, or goal.
2) (v.tr.) To come close to; be nearly the same as.
(v.intr.) To come near or close, as in degree, nature, or quality.

From L. approximatus, p.p. of approximare "to draw near to," from ad- "to" + proximare "come near," from proximus "nearest," superlative of prope "near".

1) Nazdin from nazd "near" + -in, adjective making suffix, in particular superlative, as in bišin, kamin, kehin, mehin, etc.
2) Nazdinidan from nazdin, as above, + -idan infinitive forming suffix.

approximately
  نزدینانه   
nazdinâné

Fr.: approximativement   

Not exactly, but nearly or roughly.

Adverb of → approximate.

approximation
  نزدینش   
nazdineš

Fr.: approximation   

1) General: A guess or estimate; nearness in space, position, degree.
2) Math., Physics: Result that is not quite exact, but is within the limits of accuracy required for a given purpose.

Approximation, verbal noun of → approximate.

Nazdineš, verbal noun of nazdinidan, → approximate.

appulse
  همتاخت   
hamtâxt

Fr.:   

A situation in which two heavenly bodies apparently approach each other. A close → conjunction in which no → occultation actually occurs.

L. appulsus, from appellere, appulsum "to drive to," from ad, → ad- + pellere "to drive".

Hamtâxt from ham- "against; together" + tâxt, from tâxtan "to rush upon, run, assault".

apsidal
  هباکی   
habâki

Fr.: absidial   

Relating to an → apsis.

apsis; → -al.

<< < -es -iv -ti 217 A s abe abs abs acc acc Ach act act ADa adi adv aff age Alc Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app aps arc Arg arm art ass ast ast ast atm ato att aur aut axi B-t Bai Bal bar bar Be bed Bes BHB bif bim bin Bio bis bla ble blu bod Bol bor bou bra Bre bro Bul cag cal can Can car Car Cas cat CCD cel cen Cet cha cha che che chr cir cir cit cla clo clo clu 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 coo cor cor cor cos cos cos cou cou cra cri cro cry cul cur cyc D r dar dat day dea dec dec dec def def deg del den dep des det deu dex dif dif dif dim dip dir dis dis dis dis dis div dom dos dou dri Dum dus dyn dyn ear eas ecl Edd eff Ein eje ele ele ele ele eli emb emi Enc ene ens eph epo equ equ eru eth Eul eve evo exc exc exi exo exp exp ext ext fab fai Fan Fea fem fer fie fil fir fis fla flo flu foc for for Fou fra fre fre fro fun G r Gal gal gam gas Gau gel gen geo geo geo Gho gla goa gra gra gra gra gre Gre gro gyr had hal har har HD Hea Hel hel Her her hid hig Hip hom hor hot Hub Hub hun hyd hyd hyg Hyp ice ide ima imm imp imp inc ind ind ine inf inf inf ini ins ins int int int int int int int int int inv ion iro ise iso iso Jab jet Jov Jur Kel Kep kil kit Kui Lag lam lan Lar Lat law lea lem lep Li- lig lim lin lin lio lit loc lod lon Lor low Lum lun Lup Lyn mac mag mag mag mag mag mai man mar mas mas mat Max mea mec mel mer mes met met met mic mid mil Min mir mix mod mol mom Moo mor mov mul mur nab nar nat neb neg nes neu New New nig nod non non non Nor nua nuc nul Nun OBC obl obs occ oct off Ohm on- ope opp opt opt orb orb org Ori ort Ost out ove p m Pal par par par par Pas pat Peg Peo per per per per per pha Phe pho pho pho phy pin pla pla pla pla pla plu poi pol pol Pol pol pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul Pup Qua qua qua qua que rac rad rad rad rad rad rad ran rap 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 Sac sal sat sca sca Sch sci Scu sec sec Sed sel sem sen Ser Sey Sha she sho sid sig sim sin sip ske sli smo soc sol sol sol sol sol sou spa spa spe spe spe spe Spi spi spo squ sta sta sta sta Ste ste ste sto str str str sub sub sub sun sup sup sup sup sur sus sym syn T-s tar Tei tem ter tes the the the the thi thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur Tyc Typ ult unb und uni uni unr upp Urs vac van Var veg Ven ver vib vio vir vis vol VY war wat wav WC8 Web wes whi win WN1 wob wri X-r yoc zen Zhe > >>