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: 1298
surface density
  چگالی ِ رویه‌ای   
cagâli-ye ruye-yi

Fr.: densité de surface   

The amount of a quantity distributed over a surface area divided by the area, such as a surface-charge density.

surface; → density.

surface gravity
  گرانی ِ رویه، ~ رویه‌ای   
gerâni-ye ruyé, ~ ruye-yi

Fr.: gravité de surface   

1) The rate at which a small object in free fall near the surface of a body is accelerated by the gravitational force of the body: g = GM / R2, where G is the gravitational constant, and M and R are the mass and radius of the object. The surface gravity of Earth is equal to 980 cm s-2.
2) → black hole surface gravity.

surface; → gravity.

surface of last scattering
  رویه‌ی ِ واپسین پراکنش   
ruye-ye vâpasin parâkaneš

Fr.: surface de dernière diffusion   

Same as → last scattering surface.

surface; → last; → scattering.

surface temperature
  دما‌ی ِ رویه، ~ رویه‌ای   
damâ-ye ruyé, ~ ruye-yi

Fr.: température de surface   

1) For a star, same as → effective temperature.
2) Meteo.: The air temperature at or near the earth's surface.

surface; → temperature.

surface tension
  تنش ِ رویه‌ای   
taeš-e ruye-yi

Fr.: tension superficielle   

The inward → attraction of the → molecules at the → surface of a → liquid. The reason is that the molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface. Also called surface energy and capillary forces.

surface; → tension.

surge
  برونتاز   
boruntâz

Fr.: surge   

Electricity: A sudden rush or burst of current or voltage.
Sun: A jet of material from an active region that reaches coronal heights and then either fades or returns into the chromosphere along the trajectory of ascent.

From M.Fr. sourgir "to rise, swell," from L. surgere "to rise, spring out" from → sub- "up from below" + regere "to keep straight, guide," cognate with Pers. râst, → right.

Boruntâz, from borun "out, the outside," → out, + tâz present stem of tâxtan, tâzidan "to run; to hasten; to assault" (Mid.Pers. tak "assault, attack;" Av. taka- "leap, run," from tak- "to run, flow;" cf. Skt. tak- "to rush, to hurry," takti "runs;" O.Ir. tech- "to flow;" Lith. teketi "to walk, to flow;" O.C.S. tešti "to walk, to hurry;" Tokharian B cake "river;" PIE base *tekw- "to run; to flow").

surjection
  برشانش   
baršâneš

Fr.: surjection   

A mapping f of a set A onto a set B in such a way that every b element of B is the image of at least one element a of A. In other words, for any element b of B, the equation f(a) = b yields at least one solution. Allso called → surjective mapping.

From → sur- + → injection.

surjective
  برشانی   
baršâni

Fr.: surjectif   

Of or pertaining to a → surjection.

sur-; → injection.

surjective mapping
  همتایش ِ برشانی   
hamtâyeš-e baršâni

Fr.: application surjective   

Same as → surjection.

surjective; → mapping.

survey
  ۱، ۲) بردید؛ ۳) بردید کردن   
1, 2) bardid; 3) bardid kardan

Fr.: 1, 2) relevé; 3) relever   

1) General: A general or comprehensive view; a detailed inspection or investigation.
2) Astro.: The observation and recording of large extents of the sky with a particular instrument using one or more wavelengths in the same spectral domain. → all-sky survey; → infrared survey; → redshift survey; → photographic survey.
3) To conduct a survey of.

M.E. surveien, from M.Fr. surv(e)eir, surveoir "to oversee," from L. supervidere, from → super- + videre "to look;" cognate with Pers. bin present stem of didan "to see;" Mid.Pers. wyn-; O.Pers. vain- "to see;" Av. vaēn- "to see;" cf. Skt. veda "I know;" Gk. oida "I know," idein "to see;" L. videre "to see;" PIE base *weid- "to know, to see."

Bardid from bar- "up; upon; on; in; into; at; forth; with; near; before; according to" (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") + did past stem of didan "to see" (Mid.Pers. ditan "to see, regard, catch sight of, contemplate, experience;" O.Pers. dī- "to see;" Av. dā(y)- "to see," didāti "sees;" cf. Skt. dhī- "to perceive, think, ponder; thought, reflection, meditation," dādhye; Gk. dedorka "have seen").

surveyor
  بردیدگر   
bardidgar

Fr.: 1) arpenteur-géomètre   

1) A person whose occupation is taking accurate measurements of land areas in order to determine boundaries, elevations, and dimensions.
2) One of a series of space probes (1966-1968) that analyzed lunar soil and obtained other scientific information after soft-landing on the Moon.

survey; → -or.

survival
  برزیوش   
barziveš

Fr.: survie   

The act or fact of surviving, especially under adverse or unusual circumstances (Dictionary.com).

survive; → -al.

survive
  برزیویدن   
barzividan

Fr.: survivre   

To remain alive after the death of someone, the cessation of something, or the occurrence of some event; continue to live (Dictionary.com).

M.E., from O.Fr. souvivre, from L. supervivere "live beyond, live longer than," from → super- "over, beyond," + vivere "to live," cognate with Gk. bios, → bio-, and Pers. zistan "to live," as below.

Barzividan, from bar- "over, above," variant of abar-, → super-, + zividan, from Mid.Pers. zivastan "to live," zivik, zivandag "alive, living," Mod.Pers. zistan "to live;" cf. O.Pers./Av. gay- "to live;" Av. gaya- "life," gaeθâ- "being, world, mankind," jivya-, jva- "aliving, alive," Skt. jivah "alive, living;" Gk. bios "life;" L. vivus "living, alive," vita "life;" O.E. cwic "alive;" E. quick, Lith. gyvas "living, alive;" PIE base *gweie- "to live."

susceptibility
  برخودگیری   
barxodgiri

Fr.: susceptibilité   

State or character of being susceptible. → magnetic susceptibility

M.L. susceptibilitas, from susceptibilis "capable, sustainable, susceptible," from susceptus, p.p. of suscipere "sustain, support, acknowledge," from sub "up from under" + capere "to take" ......

Barxodgiri, from bar- "up; upon; on; in; into; at; forth; with; near; before; according to" (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") + xod "self, own" (Mid.Pers. xwad "self; indeed;" Av. hva- "self, own") + giri vebal noun of gereftan "to take, seize, hold" (Mid.Pers. griftan, gir- "to take, hold, restrain;" O.Pers./Av. grab- "to take, seize," cf. Skt. grah-, grabh- "to seize, take," graha- "seizing, holding, perceiving," M.L.G. grabben "to grab," from P.Gmc. *grab, E. grab "to take or grasp suddenly;" PIE *ghrebh- "to seize").

suspect
  ۱) برگاسیدن؛ ۲) برگاسار   
1) bargâsidan; 2) bargâsâr

Fr.: 1) soupçonner; 2) suspect   

1) To believe to be guilty, false, counterfeit, undesirable, defective, bad, etc., with little or no proof.
2) A person who is suspected, especially one suspected of a crime, offense, or the like (Dictionary.com).

M.E., from M.Fr. suspecter, from O.Fr. suspect, from L. suspectus "suspected, regarded with suspicion or mistrust," p.p. of suspicere "look up at, look upward," from assimilated form of → sub- + specere, "to look at," → -scope.

Bargâsidan, from bar- "on; up; upon; in; into; at; forth; with," → on-, + gâsidan "to look at," → speculate; bargâsâr, from bargâs + -âr, contraction of âvar agent noun of âvardan "to bring; to cause, produce," → format.

suspected
  برگاسیده   
bargâsidé

Fr.: soupçonné   

Believed likely.

Past participle of → suspect.

suspicion
  برگاسش   
bargâseš

Fr.: suspicion   

1) The state of mind or feeling of one who suspects.
2) An instance of suspecting something or someone (Dictionary.com).

M.E., from suspecioun, from O.Fr. suspicion, sospeçon "mistrust, suspicion," from L.L. suspectionem "mistrust, suspicion, fear," noun of state from past participle stem of L. suspicere "to look up at," → suspect.

Verbal noun from bargâsidan, → suspect.

suspicious
  برگاسناک   
bargâsenâk

Fr.: suspicieux   

1) Tending to cause or excite suspicion; questionable.
2) Inclined to suspect, especially inclined to suspect evil; distrustful.
3) Full of or feeling suspicion (Dictionary.com).

M.E., from O.Fr. sospecious, from L. suspiciosus, suspitiosus "exciting suspicion, causing mistrust," from stem of suspicere, → suspect.

Bargâsnâk, from bargâs present stem of pargâsidan, → suspect, + -nâk adj. suffix.

sustain
  پداردن   
padârdan

Fr.: soutenir, maintenir, prolonger   

To cause or allow something to continue for a long period of time.

M.E. suste(i)nen, from O.Fr. sustenir "hold up, endure," from L. sustinere "hold up, support, endure," from → sub- "up from below" + tenere "to hold," from from PIE root *ten- "to stretch," → tension.

Padârdan, from Sogd. padâr "to sustain, support," from Proto-Ir. *pati-dar-, from *pati- "to, toward, in, at, agianst," → ad hoc, + dâr "to hold, keep, maintain," → property, + -dan infinitive suffix.

sustainability
  پداردنی، پدارش‌پذیری   
padârdani, padârešpaziri

Fr.: durabilité   

An ecological concept, the property or condition of being → sustainable.

Quality, state noun from → sustainable.

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