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
inference
  دربرد   
darbord

Fr.: inférence   

1) The act or process of deriving logical conclusions from premises known or assumed to be true.
2) Something that is inferred.

From M.L. inferentia, from inferre, from → in- "in" + ferre "to carry, bear," cognate with Pers. bordan "to carry, bear," as below.

Darbord (on the models of daryâft "perception" and peybord "understanding, finding;" see also bâzbord, → reference), from dar-, → in-, + bord past stem of bordan "to carry, bear;" (Mid.Pers. burdan; O.Pers./Av. bar- "to bear, carry," Av. barəθre "to bear (infinitive);" Skt. bharati "he carries;" Gk. pherein; L. fero "to carry;" PIE base *bher- "to carry").

inferior
  زیرین   
zirin (#)

Fr.: inférieure   

Lower in place or position; closer to the bottom or base.
Astro.: → inferior conjunction; → inferior culmination; → inferior planet.

From L. inferior "lower," comp. form of inferus (adj.) "that is below or beneath," from infra "below" (→ infrared), cognate with Pers. zir, as below.

Zirin, adj. from zir "below, down," Mid.Pers. azêr "below, under," êr "below, down; low, under," adar "low;" Av. aδara- (adj.), aδairi- (prep.) "below;" cf. Skt. ádhara- "lower;" L. infra (adv., prep.) "below, underneath, beneath," inferus "lower;" O.E. under "under, among"); PIE base *ndher.

inferior conjunction
  هم‌ایستان ِ زیرین   
hamistân-e zirin

Fr.: conjonction inférieure   

The conjunction of an inferior planet with the Sun when the planet is between the Sun and the Earth. → superior conjunction.

inferior; → conjunction.

inferior culmination
  بالست ِ زیرین   
bâlest-e zirin

Fr.: culmination inférieure   

The meridian transit of a star between the celestial pole and the north point of the horizon. Same as → lower culmination. → superior culmination.

inferior; → culmination.

inferior planet
  سیاره‌ی ِ زیرین   
sayyâre-ye zirin (#)

Fr.: planète inférieure   

A planet that orbits between the Earth and the Sun. Mercury and Venus are the only two inferior planets in the Solar System.

inferior; → planète.

infinite
  بیکران   
bikarân (#)

Fr.: infini   

Unlimited or unmeasurable in extent of space, duration of time, etc.
Math.: Not finite; an infinite quantity or magnitude; large beyond bound.
Of a set, having elements that can be put into one-to-one correspondence with a subset that is not the given set.

in- + → finite.

infinite population
  پرینش ِ بیکران   
porineš-e bikarân

Fr.: population infinie   

A → statistical population consisting of individuals or items which either possesses the infinite property through some limiting process or is non-enumerable. For example, the population of all → real numbers between 0 and 1 and the population of all → integers are examples of infinite population. In case of random sampling with replacement, any population is always infinite.

infinite; → population.

infinite series
  سری ِ بیکران   
seri-ye bikarân (#)

Fr.: série infinie   

A series with infinitely many terms, in other words a series that has no last term, such as 1 + 1/4 + 1/9 + 1/16 + · · · + 1/n2 + ... . The idea of infinite series is familiar from decimal expansions, for instance the expansion π = 3.14159265358979... can be written as π = 3 + 1/10 + 4/102 + 1/103 + 5/104 + 9/105 + 2/106 + 6/107 + 5/108 + 3/109 + 5/1010 + 8/1011 + ... , so π is an "infinite sum" of fractions. See also → finite series.

infinite; → series.

infinite set
  هنگرد ِ بیکران   
hangard-e bikarân

Fr.: ensemble infini   

A set which can be put in a one-to-one correspondence with part of itself.

infinite; → set.

infinitesimal
  بی‌کران‌خُرد   
bikarânxord

Fr.: infinitésimal   

General: Indefinitely or exceedingly small.
Math.: A variable that approaches zero as a limit. A quantity decreasing indefinitely without actually becoming zero.

Infinitesimal, coined by Ger. philosopher and mathematician Baron Gottfried Wilhelm von Leibniz (1646-1716) from N.L. infinitesim(us) "infinite in rank," from infinit(us), → infinite, + -esimus suffix of ordinal numerals + → -al.

Bikarânxord, from bikarân "unbounded, unlimited, infinite," from bi- "without" + karân "boundary, side, end" (variants karâné, kenâr, from Mid.Pers. karân, karânak, kenâr "edge, limit, boundary," Av. karana- "side, boundary, end") + xord "minute, little, small" (from Mid.Pers. xvart, xôrt "small, insignificant;" Av. ādra- "weak, dependent;" Skt. ādhrá- "small, weak, poor," nādh "to be oppressed;" Gk. nothros "sluggish;" PIE base *nhdhro-).

infinitesimal calculus
  افماریک ِ بی‌کران‌خُرد   
afmârik-e bikarânxord

Fr.: calcul infinitésimal   

The body of rules and processes by means of which continuously varying magnitudes are dealt with in → calculus. The combined methods of mathematical analysis of → differential calculus and → integral calculus.

infinitesimal, → calculus.

infinitive
  کرپایه   
karpâyé

Fr.: infinitif   

The nominal form of the verb which expresses the idea of action or state without indicating person, number, or tense.

Contraction of L. infinitivus modus "unlimited, indefinite mood," from L. infinitus, → infinite.

Karpâyé, literally "action base," from kar-, → verb, + pâyé, → base.

infinity
  بی‌پایان، بی‌پایانی   
bipâyân (#), bipâyâni (#)

Fr.: infini, infinité   

That quantity which is greater than any assignable quantity.

Noun form of → infinite.

infirm
  ۱) نادش؛ ۲) نادشیدن   
1) nâdeš; 2) nâdešidan

Fr.: 1) infirme; 2) invalider   

1) Feeble or weak in body or health, especially because of age.
2) To unvalidate.

M.E. infirm, from L. infirmus "weak, frail, not strong or firm" from → in- "not, opposite of" + firmus, → firm.

Nâdeš, from nâ- "not," → in-, + deš, → firm.

infix
  دروند   
darvand

Fr.: infixe   

An → affix that is inserted within a root or stem.

From L. infixus p.p. of infigere "to fasten in," from in- + figere "fasten."

Darvand, from dar- "in" + vand, → affix.

inflate
  پندامیدن   
pandâmidan

Fr.: s'enfler   

To become inflated; to increase, especially suddenly and substantially. → inflation, → inflatory model.

Inflate, from L. inflatus p.p. of inflare "to blow into, puff up," from → in- "into" + flare "to blow."

Pandâmidan "to swell," from pandâm [Mo'in] "swelling;" Borujerdi panâm, panam "swellig;" Malâyeri panomidan "to swell;" Laki penamiyen "to swell;" Hamadâni pandumidan "swelling of the eye or other parts of the body;" Kermâni padum kerdan "to swell," padum "swelled; fat, corpulent;" Tâleši pandâm, pandom "swelling;" Gilaki pandâm kudan "rising of river water caused by flood;" cf. Gk. pneuma "wind; breath," from pnein "to blow; to breathe;" PIE base *pneu- "to breathe." Related terms in other Indo-European languages: O.E. fnaeran "to breathe heavily," fneosan "to snort, sneeze;" M.H.G. pfnusen, pfnehen "to breathe, pant, sniff, snort, sneeze;" Norw. fnysa "to breeze;" M.Du. fniesen, Du. fniezen "to sneeze;" O.H.G. niosan, Ger. niesen "to sneeze."

inflation
  پندام   
pandâm

Fr.: inflation   

1) General: The act of inflating; the state of being inflated.
2) Cosmology: A brief exponential expansion of the Universe postulated to have occurred 10-35 seconds after the → Big Bang, in response to the separation of the → strong interaction from the → electroweak interaction. This idea aims at explaining the → flatness problem, the → horizon problem, and the → magnetic monopole problem. See also → inflaton field.

Verbal noun of → inflate.

inflationary model
  مدل ِ پندامی   
model-e pandâmi

Fr.: modèle d'inflation   

A class of → Big Bang models of the Universe that include a finite period of accelerated expansion in their early histories. Such an event would have released enormous energy, stored until then in the vacuum of space-time. The horizon of the Universe expanded, temporarily, much faster than the speed of light. → inflaton field.

Inflationary, adj. of → inflation; → model.

inflaton
  اینفلاتون   
inflaton

Fr.: inflaton   

The hypothetical → particle that mediates the hypothetical → inflaton field.

From inflat-, from → inflaton field, + particle suffix → -on.

inflaton field
  میدان ِ اینفلاتون   
meydân-e inflaton

Fr.: champ inflaton   

A hypothetical → scalar field that provides a theoretical basis for → inflation in the early → Big Bang history of the → Universe. The inflaton field would fill space with the same energy at every point. In general, the scalar field can vary with time and space, though to a first approximation everywhere in the Universe will have the same value at any time. The field has a particle associated with it, called → inflaton, just as the → electromagnetic field is associated with the → photon. The inflaton field is characterized also by a → negative pressure that would yield a tremendous → repulsive gravity during a brief lapse of time. In the earliest moments of the Universe, space is uniformly filled with an inflaton field, whose value places it higher up on its → potential energy curve. The inflaton's → potential energy would drop in a tiny fraction of a second, on the order of 10-35 seconds. And yet, during that brief instant, space would expand by a colossal factor, of at least 1030.

inflaton; → field.

<< < -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 > >>