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: 408
outcrop
  برونزد   
borunzad (#)

Fr.: affleurement   

Emergence of a particular rock-body, e.g. a stratium or vein, at the ground surface. Outcrops can be formed naturally or by human action. Stream erosion and highway construction can produce outcrops.

Noun use of crop out, from crop, from M.E., O.E. cropp "bird's craw," also "head or top of a sprout or herb;" → out.

Borunzad, literally "strike out," from borun, birun, → out, + zad, zadan "to strike, beat," from 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."

outer
  بیرونی   
biruni (#)

Fr.: externe   

Being or located on or toward the outside; external.

out + -er suffix of comparative degree of adjectives.

external.

outer core
  مغزه‌ی ِ بیرونی   
maqze-ye biruni

Fr.: noyau externe   

The upper zone of the → Earth's core, just below the → mantle, extending from a depth of about 2900 km to 5100 km. It is presumed to be → liquid because it sharply reduces → compressional wave velocities and does not transmit → shear waves. Its density is from 9 to 11 g/cm3. The → temperature ranges from 4400 °C in the outer areas to 6100 °C near the → inner core. Since shear waves do not propagate through a fluid, the Earth's outer core is considered to be liquid because the shear wave velocity is zero. Convection motion within the outer core, along with the rotation of the Earth creates an effect that maintains the Earth's → magnetic field.

outer; → core.

outer Lindblad resonance (OLP)
  باز‌آوایی ِ لیندبلاد ِ برونی   
bâzâvâyi-ye Lindblad-e boruni

Fr.: résonance de Lindblad externe   

A → Lindblad resonance expressed by: Ωp = Ω + κ/m.

outer; → Lindblad resonance.

outer planet
  سیاره‌یِ بیرونی   
seyyâre-ye biruni (#)

Fr.: planète extérieure   

A planet that revolves around the Sun beyond the → asteroid belt, namely → Jupiter, → Saturn, → Uranus, and → Neptune.

out; → planet.

outer space
  فضا، برون-فضا، فضای ِ بیرونی   
fazâ, borun-fazâ, fazâ-ye biruni

Fr.: espace, espace extra-atmosphérique   

The space beyond the Earth's atmosphere.

outer; → space.

outflow
  ا ُستچان   
ostacân

Fr.: flot, écoulement   

The act of flowing out; a fluid that flows out; any outward movement. Opposite of → inflow.

out + → flow.

outgassing
  ا ُسگازش   
osgâzeš

Fr.: dégazage   

1) General: The slow release of a gas that was trapped, frozen, absorbed or adsorbed in some material.
2) Planets: Release of the gases locked in the interior of a planet during volcanic activity so that they become part of the planet's atmosphere.

out + verbal noun from → gas.

output
  برونداد   
borundâd (#)

Fr.: sortie   

1) Power which is given out by any plant or part of such plant, in the form and for the purpose required.
2) Computers: The information produced by a program or process from a specific → input.

From → out + put, from M.E. put(t)en "to push, thrust, put;" O.E. *putian.

borundâd, from borun, birun, → out, + dâd "given," p.p. of dâdan "to give" (Mid.Pers. dâdan "to give," O.Pers./Av. dā- "to give, grant, yield," akin to L. data, → datum).

outreach
  برون‌رسانی، همه‌آموزی   
borun-rasâni, hame-âmuzi

Fr.: éducation grand public   

The act of extending research activities beyond its current or conventional limits to a wide section of the population for educational purposes.

out; reach, M.E. rechen, O.E. ræcan "to extend, hold forth;" cf. O.Fris. reka, M.Du. reiken; cognate with Pers. râst, → right.

Borun-rasâni, from borun, → out, + rasâni verbal noun of rasândan "to carry, guide, send," transitive of rasidan "to reach, arrive," → access.
Hame-âmuzi, literally "teaching every body," from hamé, → all; âmuzi, from âmuxtan "to teach; learn," → teach.

outsource
  برون-خنیدن   
borun-xanidan

Fr.: externaliser   

To obtain under contract with an outside supplier.

out; → source.

outsourcing
  برون-خنش   
borun-xaneš

Fr.: externalisation   

The transferring of certain business functions from internal staff to outside contractors.

Verbal noun from → outsource.

oval
  خاگی   
xâgi (#)

Fr.: ovale   

Having the general form, shape, or outline of an egg; ellipsoidal or elliptical.

From M.L. ovalis "egg-shaped," from L. ovum "egg," cognate with Pers. xâg, as below.

Xâgi "egg-shaped," literally "pertaining to an egg," from xâg "egg," Lori, Laki , Pash. "egg," Ossetic ajk "egg," Khotanese āhaa- "egg;" variant xâyé "egg; testicle;" Mid.Pers. xâyak "egg;" Av. aēm/aiam "egg;" cf. Gk. oion, L. ovum, as above; Goth. ada; O.E. æg; Ger. Ei; PIE *owyo-/*oyyo- "egg."

over-
  بیش-، ا َبَر   
biš-, abar-

Fr.: trop, très, en plus; par-dessus, partout   

A prefixal use of over with the sense of "over the limit," "to excess," "too much" to form verbs, adjectives, adverbs, and nouns, e.g. → overabundance; → overdense; → overestimate.

O.E. ofer, from P.Gmc. *uberi (cf. O.S. obar, O.Fris. over, O.H.G. ubar, Ger. über, Goth. ufar "over, above"), from PIE *uper; cf. Gk. hyper, preposition and adverb, "over, beyond, overmuch, above;" cognate with L. super- and Pers. abar-, as below.

Biš- "much, more; in excess; great" (from Mid.Pers. veš "more, longer; more frequently," related to vas "many, much" (Mod.Pers. bas); O.Pers. vasiy "at will, greatly, utterly;" Av. varəmi "I wish," vasô, vasə "at one's pleasure or will," from vas- "to will, desire, wish").
Abar, variant 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").

over-expose
  بیش‌نوردادن   
bišnurdâdan

Fr.: surexposer   

To expose a detector to too much photons, resulting in saturation.

over-; → expose.

over-exposure
  بیش‌نورداد   
bišnurdâd

Fr.: surexposition   

Excessive exposure of a detector, → over-expose.

over-; → exposure.

overabundance
  بیش‌فراوانی   
biš-farâvâni

Fr.: surabondance   

The abundance of a chemical element exceeding a reference value, in particular compared to that of the Sun.

over-; → abundance.

overdamping
  بیش‌میرایی   
bišmirâyi

Fr.: sur-amortissement   

The condition of a system in which the damping is so large that the system comes to a position of rest without oscillating.

over-; → damping.

overdense matter
  ماده‌یِ بیش‌چگال   
mâdde-ye biš-cagâl

Fr.: matière surdense   

Matter whose density exceeds a reference level.

over-; → dense; → matter.

overestimate
  ۱) بیش‌بر‌آوردن؛ ۲) بیش‌بر‌آورد   
biš-barâvardan; 2) biš-barâvard

Fr.: 1) surestimer; 2) surestimation   

1) To estimate at too high a value, amount, rate, or the like.
2) An estimate that is too high.

over-; → estimate.

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