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: 13116 Search : far
auroral zone
  زنار ِ اوشه‌ای   
zonâr-e uše-yi

Fr.: zone aurorale   

A roughly circular band around either geomagnetic pole above which there is a maximum of auroral activity. It lies about 10 to 15° of geomagnetic latitude from the geomagnetic poles.

auroral; → zone.

authenticate
  راستین‌شماردن   
râstin šomârdan

Fr.: authentifier   

1) To establish as genuine.
2) To prove beyond doubt the authorship or origin of (e.g. to authenticate a painting). → authentication.

From L.L. authenticus, from Gk. authentikos "original, primary, at first hand," from authent(es) "one who does things himself," from aut-, from autos "self, one's own," of unknown origin, + -hentes "doer" + -ikos, → ics.

Râstin "genuine, authentic," from râst "right, true; just, straight" (Mid.Pers. râst "true, straight, direct;" O.Pers. rāsta- "straight, true," rās- "to be right, straight, true;" Av. rāz- "to direct, put in line, set," razan- "order;" cf. Skt. raj- "to direct, stretch," rjuyant- "walking straight;" Gk. orektos "stretched out;" L. regere "to lead straight, guide, rule," p.p. rectus "right, straight;" Ger. recht; E. right; PIE base *reg- "move in a straight line," hence, "to direct, rule") + -in adj. suffix.
Šomârdan "to consider; to reckon, count, compute;" Mid.Pers. ôšmârtan, ôšmurtan "to reckon, calculate, enumerate, account for," from Av. base (š)mar- "to have in mind, remember, recall," pati-šmar- "to recall; to long for," hišmar-, cf. Skt. smar- "to remember, become aware," smarati "he remembers," L. memor, memoria, Gk. mermera "care," merimna "anxious thought, sorrow," martyr "witness."

authentication
  راستین‌شماری، راستین‌آزمایی   
râstinšomâri, râstin-âzmâyi

Fr.: authentification   

Computers: The process by which a user's identity is checked within the network to ensure that the user has access to the requested resources.

Verbal noun of → authenticate.

author
  داتار   
dâtâr

Fr.: auteur   

1) The writer of a book, article, or other text. One who practices writing as a profession.
2) An originator or creator, as of a theory or plan.
3) Author God.

M.E. auctour, from O.Fr. autor, from L. auctor, "creator, enlarger, founder, master, leader," literally "one who causes to grow," from auctus, p.p. of augere "to increase," from PIE root aug- "to increase".

Dâtâr, from Mid.Pers. dâtâr/dâdâr "creator," from Av. and O.Pers. dâtâr "creator," from dâ- "to create, make, appoint," Skt. dhatr "author, creator, preserver, bearer." The Mod.Pers. form of this word in classical literary works is dâdâr, used mainly as noun or adjective for "God, the creator."

authoritarian
  داتارگانورز   
dâtârgânvarz

Fr.: autoritaire   

Of, relating to, or characterized by strict obedience to authority.

From authorit(y), → authority, + suffix -arian.

authoritarianism
  داتارگانورزی   
dâtârgânvarzi

Fr.: autoritarisme   

1) The enforcement or advocacy of strict obedience to authority at the expense of personal freedom.
2) Lack of concern for the wishes or opinions of others (OxfordDictionaries.com).

authoritarian; → -ism.

authoritative
  داتارگانمند   
dâtârgânmand

Fr.: qui fait autorité, digne de foi   

1) Recognized or accepted as being true or reliable.
2) Exercising or asserting authority; commanding.
3) Possessing or supported by authority; official (Dictionary.com).

From authorit(y), → authority, + suffix -ative.

authority
  داتارگان   
dâtârgân

Fr.: autorité   

1) The power to determine, adjudicate, or otherwise settle issues or disputes; jurisdiction; the right to control, command, or determine (Dictionary.com).
2) A person or body of persons in whom authority is vested, as a governmental agency (Dictionary.com).

author; → -ity.

Dâtârgân, from dâtâr, → author, + -gân, on the model of xodâygân "a great lord."

authorship
  داتاری   

Fr.: paternité   

1) The act, fact, or occupation of writing.
2) Source or origin, as of a book or idea.

author.

auto-, aut-
  خود-   
xod- (#)

Fr.: auto-, aut-   

Gk., from autos "self, one's own," of unknown origin.

Xod-, from xod "self," Av. hva- "self, own."

autocorrelation
  خودهم‌باز‌آنش   
xod-hambâzâneš

Fr.: autocorrélation   

1) In radio astronomy, a process performed by an → autocorrelator.
2) In statistics, a linear relation between values of a random variable over time.
3) In electronics, a technique used to detect cyclic activity in a complex signal.

Autocorrelation, from → auto- "self" + → correlation.

Xod-hambâzâneš, from xod- "self" + hambâzâneš, → correlation.

autocorrelation function
  کریا‌ی ِ خودهم‌باز‌آنش   
karyâ-ye xod-hambâzâneš

Fr.: fonction d'autocorrélation   

A mathematical function that describes the correlation between two values of the same variable at different points in time.

autocorrelation; → function.

autocorrelator
  خودهم‌باز‌آن‌گر   
xod-hambâzângar

Fr.: autocorrélateur   

In radio astronomy, a spectrograph which correlates the signal with itself with various time delays, and extracts the frequency spectrum of the signal. → correlator.

Autocorrelator, agent n. from → autocorrelate + → -or.

Xod-hambâzângar, agent n. from xod-, → auto-, + hambâzângar, → correlator.

autocovariance
  خود-هم‌ورتایی   
xod-hamvartâyi

Fr.: autocovariance   

The → covariance of a → time series overt time.

auto-; → covariance.

autocovariance function
  کریای ِ خود-هم‌ورتایی   
karyâ-ye xod-hamvartâyi

Fr.: fonction d'autocovariance   

The autocovariance function (ACF) is defined as the sequence of covariances of a stationary process.
A mathematical function that expresses the autocovariance of a series in terms of the interval of separation.

autocovariance; → function.

autoguider
  خودراهبر، راهبر ِ خودکار   
xodrâhbar, râhbar-e xodkâr

Fr.: autoguideur   

An electronic equipment used to automatically guide a telescope during long exposures.

Autoguider from → auto- "self" + guider, from O.Fr. guider "to guide, lead, conduct," from Germanic origin; akin to O.E. wltan "to look after" witan "to know," akin to O.H.G. wizzan "to know," L. videre "to see," Gk. eidenai "to know," idein "to see," Av. vaêd- "to know," Skt. veda "knowledge; finding."

Xodrâhbar from xod-, → auto + râhbar "guide," from râh "way" + bar, from bordan "to lead."

autoguiding
  خودراهبرد، راهبرد خودکار   
xodrâhbord, râhbord-e xodkâr

Fr.: autoguidage   

The act or process of guiding a telescope automatically.

autoguider.

automatic
  خودکار   
xodkâr (#)

Fr.: automatique   

Having a self-acting or self-regulating mechanism.

From Gk. automatos "self-acting," from → auto- + matos "willing," from PIE *men- "to think;" compare with Av./O.Pers. man- "to think."

Xodkâr from xod-, → auto-, + kâr "acting, actor," from kardan "to do, act."

automatic photometric telescope
  دوربین ِ شیدسنجیک ِ خودکار، تلسکوپ ِ ~ ~   
durbin-e šidsanjik-e xodkâr, teleskop-e ~ ~

Fr.: télescope photométrique automatique   

A telescope developed to perform photometric observations automatically.

automatic; → photometric; → telescope.

automorphism
  خود-ریخت‌مندی   
xod-rixtmandi

Fr.: automorphisme   

An → isomorphism between an → object and itself.

auto-; → morphism.

<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer aga air Alf Alg alk Alp alt alu amm ana And ang ani ano ant ant Ap apo app app Aqu Arc arg arr asc ass ast ast asy atm ato att aur aut axi B-m bad Bal bar bar Bay Bed ber Bet bif bim bin bio bis bla ble blu Bod Bol bor bou Bra Bre bro bul C-t Cal Cam can car Car Cas cat cav cel cen cer Cha cha Cha che chl Cir cir cir Cla cli clo clu co- coc 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 Cre cri cro cub cur cyc cyl Dan dat Dav de- Deb dec dec dee def deg del Den den der det deu dew dic dif dif dil Dip dir dis dis dis dis dis diu dod Dop dou Dra dua dus dwa dyn DZ Ear ecc eco edi EHB Ein ela ele ele ele ele ell eme emp end Eng ent epi equ equ era ESP eth Eur evi exa exc exe exi exp exp ext ext ext fac fal far fec Fer fer fie fin fir fis fla Flo flu fog for for Fou fra fre fre Fro fun G s Gal gal gal Gar gau geg gen geo geo geo ger gla gly gra gra gra gra gra Gre gro GYR Had Hal hap Har HD hea hel hel Hen Her hex hig Hil hol Hoo hor hou Hub hum hyb hyd hyd hyp hys ide ign ima imp imp in- inc Ind ind ine inf inf inf ini ins ins ins int int int int Int int int int inv ion iri irr iso iso iso Jea Jor jum K c Kep Ker kin kno lab Lam Lan Lap las lat Le lef len lev lig lig lin lin lin liq Lit loc log lon lou LS lun lun Lym M s Mag mag mag mag mag mag maj man Mar mas mas mat May mea mec mel mer mes met met met mic mid mil Min Mir mix mod mod mol mon mor mov mul mur mys nan nat nav nec Nep neu New New NGC nob nom non non nor nos nuc nuc num nut obj obl obs occ oct off oli oni ope opp opt opt orb ord org orp osc out ove oxi P-w pal par par par par Pas pat pej per per per per per per pha Phe pho pho pho phy pin pla Pla pla pla pla plu poi pol pol Pol pol por pos pot Poy pre pre pre pre pri pri pri pro pro pro pro pro pro Psa pul pum Q i qua qua qua qua R A rad rad rad rad rad rad Ram Ran rat rea rea rec rec red red ref ref reg rei rel rel rem rep res res res ret rev Rho Rie ril riv rog Ros rot rul S A Sag sam sat sca sca Sch Sco Sec sec sec seg sel sem sen set Sha sha shi sho sid sig sim sin Sir ske sli Smo soc sof sol sol sol sol sou sou spa spe spe Spe spe sph spi Spi spr sta sta sta sta sta ste ste ste Sto str str sub sub sub suc sun sup sup sup sup sur swa syn syn tac tas tel tem ter tes the the the the thi thr tid til tip ton tor tou tra tra tra tra Tri tri tru tsu tur two Typ UHE ult unc uni uni uni upg 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 > >>