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: 12942 Search : far
principle of excluded middle
  پروز ِ میانی سکلانده   
parvaz-e miyâni sokalândé

Fr.: principe du milieu exclu, ~ ~ tiers ~   

The second principle of → formal logic introduced in Aristotle's theory of the → syllogism: A statement is either → true or → false. In other words, two → contradictory → propositions cannot both be true. The truth of one implies the falsehood of the other. Also called law of excluded middle and → principle of excluded third.

principle; → exclude; → middle.

principle of excluded third
  پروز ِ سومی سکلانده   
parvaz-e sevomi sokalândé

Fr.: principe du tiers exclu   

Same as → principle of excluded middle.

principle; → exclude; → third.

principle of identity
  پروز ِ ایدانی   
parvaz-e idâni

Fr.: principe d'identité   

The first principle of → formal logic introduced in Aristotle's theory of the → syllogism: If a statement is true then it is true. Also called → law of identity.

principle; → identity.

principle of least action
  پَروز ِ کمترین ژیرش، ~ ~ کنش   
parvaz-e kamtarin žireš, ~ ~ koneš

Fr.: principe de moindre action   

The principle that, for a system whose total mechanical energy is conserved, the path to be taken for the system from one configuration to another is the one whose action has the least value relative to all other possible paths and from the same configurations. Also called Maupertuis' principle, least-action principle.

principle; → least; → action.

principle of non-contradiction
  پروز ِ ناپادگویی   
parvaz-e nâpâdguyi

Fr.: principe de non-contradiction   

The third principle of → formal logic introduced in Aristotle's theory of the → syllogism: No statement can be both → true and → false at the same time. Also called → law of non-contradiction.

principle; → non-; → contradiction.

principle of relativistic causality
  پروز ِ بنارمندی ِ باز‌آنیگی‌مند   
parvaz-e bonârmandi-ye bâzânigi-mand

Fr.: principe de la causalité relativiste   

One consequence of the theory of → special relativity, according to which no two events separated by a distance greater than their separation in time multiplied by the → speed of light may have a → causal influence on each other. Violation of this principle leads to → paradoxes, such as that of an → effect preceding its → cause.

principle; → relativistic; → causality.

principle of relativity
  پروز ِ بازانیگی   
parvaz-e bâzânigi

Fr.: principe de relativité   

The first postulate in Einstein's theory of → special relativity whereby all the laws of physics are the same in every → inertial reference frame. In other words, no physical measurement can distinguish one inertial reference frame from another. See also → principle of constancy.

principle; → relativity.

print
  ۱) چاپ؛ ۲) چاپ‌کردن   
1) câp; 2) câp kardan

Fr.: 1) impression, empreinte, imprimé; 2) imprimer   

1a) The state of being printed.
1b) Printed lettering, especially with reference to character, style, or size.
1c) Printed material; a printed publication, as a newspaper or magazine.
2a) To produce (a text, picture, etc.) by applying inked types, plates, blocks, or the like, to paper or other material either by direct pressure or indirectly by offsetting an image onto an intermediate roller.
2b) To reproduce (a design or pattern) by engraving on a plate or block.
2c) To form a design or pattern upon, as by stamping with an engraved plate or block.
2d) To cause (a manuscript, text, etc.) to be published in print (Dictionary.com).

M.E. prent(e), print(e), prient(e), from OF priente "impression," noun use of feminine p.p. of preindre "to press," from L. premere "to press, hold fast."

Câp "press," loan from Indo-Aryan languages chapa, chháp, chāp "seal, stamp, impression."

printer
  چاپگر   
câpgar

Fr.: imprimante, imprimeur   

1) A person or thing that prints, especially a person whose occupation is printing.
2) Computers: An output device that produces a paper copy of alphanumeric or graphic data (Dictionary.com).

print; → -er.

printer font
  ریختار ِ چاپگر   
rixtâr-e câpgar

Fr.: fonte d'imprimante   

A font used for printing. See also → screen font.

printer; → font.

prior
  پرین   
parin

Fr.: précédent, antérieur   

1) Preceding in time or in order; earlier or former; previous.
2) Preceding in importance or privilege.

O.E., from M.L. prior "former, previous, first, superior," comparative of O.L. pri "before," from PIE *prai-, *prei-, from root *per- "forward, through," → pro-.

Parin, from pra-, fra- "before, forward, forth," cognate with Gk. and L. → pro-.

priority
  پرینی   
parini

Fr.: priorité   

The condition or quality of being earlier in time or occurrence, or being regarded as more important.

prior; → -ity.

prism
  منشور   
manšur (#)

Fr.: prisme   

Optics: A transparent solid body, having at least two polished plane faces inclined relative to each other, from which light is reflected or through which light is refracted.
Geometry: A solid having two faces lying in parallel planes and with the other faces parallelograms.

L.L. prisma, from Gk. prisma, literally "something sawed," from prizein "to saw."

Manšur, etymology not clear, may be related to Ar. mawšur "prism," of unknown origin.

prism angle
  زاویه‌ی ِ منشور   
zâviye-ye manšur

Fr.: angle de prisme   

The angle between the faces on which light is incident and from which it emerges.

prism; → angle.

prism binoculars
  دوچشمی ِ منشوری، ~ منشوردار   
docešmi-ye manšuri, ~ manšurdâr

Fr.: jumelles à prismes   

An optical device consisting of a pair of small telescopes mounted side by side, each telescope having two prisms between the eyepiece and objective for erecting the image.

prism; → binoculars.

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.

<< < -es -iv -ti 21- A r abe abs abs acc acc acc act act ada adi adu aff age alc Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app aps arc Arg ari art ass ast ast ast atm ato att aur aut axi B r bac Bal Bar Bar Bay bec Ber Bet Bie bij bin bio bis bla bla blu blu bol Bor bou Bra bre bro Bug C-s cal Cam can car Car Cas cat cav cel cen cer Cha cha cha che cho cir cir cir 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 cre cro cru cub cur cyc Cyn dar dat day de- dec dec dec def def deg del den dep Des det deu dex die dif dif dil dip dir dis dis dis dis dis div dom Dor dou Dra duc dus dwa dyn e-t ear ecl eco eff Ein Ein ele ele ele ele ele elv emi emp ene enr epa epo equ equ Err Eta Eul eva evo exc exc exh exo exp exp ext ext Fab fai fan fau fel fer fic fil fin fir fla fli flu foc for for for fra fre fre fro fun fuz 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 hep Her hex hig Him hol hor hos hov Hub Hun hyd hyd hyd hyp IC ide ill Ima imp imp inc inc ind ine inf inf inf ini inp ins ins int int int int Int int int int inv ion Iri irr iso iso ite jel Jou JUp Kan Kep Kil kin 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 mec meg men mer met met Met mic mid Mil min Mir mix mod mod mol mon mor mov mul mur n-b nan nat nea neg Ner neu new New NGC noc nom non non nor nou nuc nuc num O-p obl obs obs oce Of? ohm omn opa Oph opt opt or orb ord Ori ort osc out ove ozo pal pan par par par par pat pec pen per per per per per Pfu pha pho pho pho phy pie pla Pla pla pla pla plu poi pol pol pol pol por pos pot pow pre pre pre pre pri pri pri pro pro pro pro Pro pro Prz pul pum Pyx 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 rhy rif Rin rob Rom rot rot rum S s Sak San sav sca Sch Sch scr sec sec SED sei sel sem seq sex Sha she sho sid sig sil sim sin siz sla Sma SNR Sof sol sol sol sol sou sou spa spe spe spe spe sph spi spo squ sta sta sta sta ste ste ste sto sto str str sub sub sub sum sup sup sup sup sur sus sym syn syz tan tea tem ten ter the the the the thi thr tid til tip tom tor tou tra tra tra tra Tri tri tru tsu tur two Typ ult umb unc uni uni unk upp urg uvb val var Veg vel ver vib vio vir vis Voi vow wan wat wav WC wea wel whi Wil wir WNh wor X-r Yer Z s zer [C > >>