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: 13070 Search : far
prism ocular
  چشمی ِ منشوری، ~ منشوردار   
caši-ye manšuri, ~ manšurdâr

Fr.: prisme oculaire   

An ocular equipped with a prism that forms an upright image in an astronomical telescope.

prism; → ocular.

prismatic astrolabe
  اسطرلاب ِ منشوری   
ostorlâb-e manšuri

Fr.: astrolabe à prisme   

An instrument used to determine the precise timing of a star's passage across a vertical circle. It is used for making precise determinations of the positions of stars and planets, and can be used inversely to determine the latitude and longitude of the observer, assuming the star positions are accurately known. It consists of an accurate prism, a small pool of mercury to serve as an artificial horizon. The most notable example of this type of instrument is that of → Danjon astrolabe.

Adj. of → prism + → astrolabe.

prismatic spectrum
  بیناب ِ منشوری   
binâb-e manšuri

Fr.: spectre prismatique   

The spectrum formed by a dispersing prism or a dispersing prism system.

Adj. of → prism + → spectrum.

privacy
  واونی   
vâvani

Fr.: intimité   

The state of being private.

Noun from → private.

private
  واون   
vâvan

Fr.: privé   

Pertaining to or affecting a particular person or a small group of persons; individual; → personal (Dictionary.com).

L. privatus "set apart, peculiar, personal," used in contrast to publicus, p.p. of privare "to separate, deprive, to rob" from privus "one's own, individual."

Vâvan, literally "separated, not bound," from vâ- separation prefix, → de-, + van, contraction of vand, band, from vastan, bastan "to bind, fasten, close," → band.

privatization
  واونش   
vâvaneš

Fr.: privatisation   

The transfer from public to private ownership.

private; → -tion.

privatize
  واوندن   
vâvandan

Fr.: privatiser   

To transfer from public to private ownership and control.

private; → -ize.

privilege
  فرداره   
fardâré

Fr.: privilège   

A special right, advantage, or immunity granted or available only to a particular person or group (OxfordDictionaries.com).

M.E., from O.Fr. privilege "right, priority, privilege" and directly from L. privilegium "law applying to one person, bill of law in favor of or against an individual," from privus "individual," → private.

Fardâré, from far- intensive prefix "much, abundant; elegantly," → perfect, + dâr present stem of dâštan "to have, possess," → property, + noun/relation suffix .

privileged
  فرداره‌مند   
fardâremand

Fr.: privilégié   

Having special rights, advantages, or immunities.

Adjective from → privilege.

pro-
  فرا-   
farâ- (#)

Fr.: pro-   

A prefix of priority in space or time having especially a meaning of advancing or projecting forward or outward.

From L. pro "in favor of, in place of, before, for," also in some cases from cognate Gk. pro "before, in front of," both from PIE base *por- "forward, through;" cf. Pers. farâ-, as below; Gk. para- "from beside, against, beyond;" Goth. faura "before," O.E. fore "before, for, on account of."

Farâ- "forward, along; above, upon, over; before, foremost, opposing, facing," variant far- intensive prefix "much, abundant; elegantly," from Mid.Pers. fra-; O.Pers. fra- "forward, forth;" Av. frā, fərā-, fra- "forward, forth; before; excessive" (fratəma- "first, front," pouruua- "first," fra-cara- "preceding"); cf. Skt. prá- "before; forward, in fron," prathama- "earliest, initial," pūrva- "first;" Gk. pro; L. pro, as above.

probability
  شوانایی   
šavânâyi

Fr.: probabilité   

1) General: The quality or fact of being probable. A strong → likelihood or chance of something.
2) Statistics: The branch of → mathematics that studies the possible outcomes of given events and their relative distributions. → probability theory.

From → probable + → -ity.

probability curve
  خم ِ شوانایی   
xam-e šavânâyi

Fr.: courbe de probabilité   

A curve that describes the distribution of probability over the values of a random variable.

probability; → curve.

probability density function
  کریای ِ چگالی ِ شوانایی   
karyâ-ye cagâli-ye šavânâyi

Fr.: fonction de densité de probabilité   

A mathematical function whose integral over any interval gives the probability that a continuous → random variable has values in this interval. Also known as → density function, frequency function, → probability function.

probability; → density; → function.

probability distribution
  واباژش ِ شوانایی   
vâbâžeš-e šavânâyi

Fr.: distribution de probabilité   

The function that describes the range of possible values that a random variable can attain and the probability that the value of the random variable is within any (measurable) subset of that range.

probability; → distribution.

probability function
  کریای ِ شوانایی   
karyâ-ye šavânâyi

Fr.: fonction de probabilité   

A function that represents a probability distribution in terms of integrals. Also called probability density function or density function.

probability; → function.

probability theory
  نگره‌ی ِ شوانایی   
negare-ye šavânâyi

Fr.: théorie des probabilités   

A branch of → mathematics with its own axioms and methods, which is based on the concept of → randomness and is concerned with the possible outcome of given → events and their relative → likelihoods and → distributions.

probability; → theory.

probable
  شوانا   
šavânâ

Fr.: probable   

Likely to happen or to be true; likely but uncertain.

From O.Fr. probable, from L. probabilis "provable," from probare "to try, to test, to prove worthy," from probus "worthy, good, upright, virtuous," from PIE *pro-bhwo- "being in front," from *pro-, extended form of base *per- (cf. Pers. farâ "forward, front"), + base *bhu- "to be" (cf. Pers. budan "to be").

Šavânâ (on the model of tavânâ "able, strong", from tav- "to be able"), from šow- present stem of šodan "to become, to be, to be doing, to go, to pass," from Mid.Pers. šudan, šaw- "to go;" Av. š(ii)auu-, šiyav- "to move, go," šiyavati "goes," šyaoθna- "activity; action; doing, working;" O.Pers. šiyav- "to go forth, set," ašiyavam "I set forth;" cf. Skt. cyu- "to move to and fro, shake about; to stir," cyávate "stirs himself, goes;" Gk. kinein "to move;" Goth. haitan "call, be called;" O.E. hatan "command, call;" PIE base *kei- "to move to and fro."

probable error (PE)
  ایرنگ ِ شوانا   
irang-e šavânâ

Fr.: erreur probable   

A deviation from the population mean μ such that 50% of the observations may be expected to lie between μ - PE and μ + PE. For the normal distribution, the probable error is 0.6745 times the standard deviation.

probable; → error.

probe
  ۱) گمانه؛ ۲) گمانه زدن   
1) gomâné (#); 2) gomâné zadan (#)

Fr.: 1) sonde; 2) sonder   

1) (n.) An exploratory action or device for investigating and obtaining information on a remote region.
Same as → space probe. → lunar probe.
2) (v.) To conduct a thorough investigation of something.
To examine or explore with a probe.

M.L. proba "examination, test," L. probare "to test, prove worthy," from probus "worthy, good, upright."

1) Gomâné "a shaft sunk in order to ascertain the depth of the water when making a subterraneous canal," from Proto-Iranian *vi-mā-, from vi- "apart, away from, out" (cf. Av. vi-; O.Pers. viy- "apart, away;" Skt. vi- "apart, asunder, away, out;" L. vitare "to avoid, turn aside") + mā- "to measure" (cf. O.Pers./Av. mā(y)- "to measure;" Mod.Pers. mâ/mun/mân "measure," as in Pers. terms âz- "to test;" pirâmun "perimeter," âzmun "test, trial," peymân "measuring, agreement," peymâné "a measure; a cup, bowl;" PIE base *me- "to measure;" cf. Skt. mati "measures," matra- "measure;" Gk. metron "measure;" L. metrum).
2) Gomâné zadan composite infinitive of gomân with zadan "to strike, beat; to play an instrument; to do" (Mid.Pers. zatan, žatan; O.Pers./Av. jan-, gan- "to strike, hit, smite, kill" (jantar- "smiter"); cf. Skt. han- "to strike, beat" (hantar- "smiter, killer"); Gk. theinein "to strike;" L. fendere "to strike, push;" Gmc. *gundjo "war, battle;" PIE *gwhen- "to strike, kill").

problem
  پراسه   
parâsé

Fr.: problème   

1) Any question or matter involving doubt, uncertainty, or difficulty.
2) Math.: A statement requiring a solution, usually by means of a mathematical operation or geometric construction.

M.E., from O.Fr. problème, from L. problema, from Gk. problema "a problem, a question," literally "thing put forward," from proballein "to propose," from → pro- "forward" + ballein "to throw," → ballistics.

Parâsé, from pərəs- present tense stem of Av. fras- "to ask, question, inquire," pərəsaiti "asks," to which is related Mod.Pers. pors-, porsidan "to ask;" Mid.Pers. pursidan; O.Pers. fraθ- "to ask, examine, investigate, punish;" Sogd. anfrāsē "question, enquiry;" cf. Skt. prasś- "to ask, long for;" Tokharian prak-/prek- "to ask;" L. prex "request," precor "to ask, to pray;" Lith. prašyti "to ask, to demand;" PIE base *prek- "to ask."

<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer AGB air Alf Alg all alp alt AM amo ana And ang ani ano Ant Ant apa apo app app Ara Arc ari Arr ash ass ast ast asy atm ato att aut aut axi Baa bal Bal bar bar bea beh Bes bia big bin bin bip biv bla bli blu Boh Bol Bos bou bra bri bro buo Cal cal Can cap car Car cat cat CCD Cen cen CGS cha cha che che chr cir cir cis 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 con Cop Cor cor cor cos cos Cou cou cov cre cri cro cry cur cut Cyg DA dar dat de deb dec dec ded def def dei dem den dep des det dev dia dif dif dig Dio Dir dis dis dis dis dis dis div dom dou dow dri dur dus dyn dyn ear eav ecl Edd eff Ein Ekm ele ele ele ele ell emb emi enc ene ent eph equ equ equ eru eth eup eve EX exc exe exi exo exp ext ext ext fab fai far Fec fem fer fie fin 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 hol hor hos hov Hub Hun hyd hyd hyd hyp IC ide ill ima imp imp inc inc ind ind inf inf inf inf inj InS ins int int int int int int int int int inv ion iro ise iso iso ite jet Jou Jup kap 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 mar mas mas mat max mea mea med men mer Mes met met mic Mic Mie Mil min mis mJy mod mol mon moo mot mul mul mut nad nas nat neb neg net neu New New nig Noe non non non Nor nov nuc nul num OB obl obs occ Ock off Ohm on- ope opi opt opt orb orb ord Ori ort osm out ove ozo pal pan par par par par pat pec pen per per per per per Pfu pha pho pho pho phy pie Pit Pla pla pla pla ple Poi pol pol pol pol pop pos pos pow pre pre pre pre pri pri pri pro pro pro pro pro pro Pro pub pul pyr qua qua qua qua qui rad rad rad rad rad rad rai ran Ras Ray rea rec rec rec red red ref reg reg rel rel rel rep res res res res Reu rhe Rie rig ris Roe Ros rot Rud ryd Sag sam sat sca sca Sch sci Sea sec sec see sel sem sen ser Sey Sha she sho sid sig sim sim sin ske sle smo Sob sof sol sol sol sol sou Sou spa Sp spe spe spe sph spi spi spr squ sta sta sta sta ste ste ste Sto Str str str sub sub suc sun sup sup sup sup sur swa syn syn tab tar tek tem ter tes the the the the Tho thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur two Typ ult un- und uni uni unk upp Urc utt val var vec vel ver ver vin vir vis Vog von wal wat wav wax wea wei Whi wil win WN7 wor X-r Yar You zer zod > >>