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: 722
response curve
  خم ِ پاسخ   
xam-e pâsox

Fr.: courbe de réponse   

A curve graphically representing the magnitude of the → response of a → detector to → radiation, usually as a function of → wavelength.

response; → curve.

response time
  زمان ِ پاسخ   
zama-e pâsox

Fr.: temps de réponse   

The time between an occurrence and a reaction produced by the occurrence.

response; → time.

responsibility
  پاسخداری   
pâsoxdâri

Fr.: responsabilité   

1) The state or fact of being responsible, answerable, or accountable for something within one's power, control, or management.
2) An instance of being responsible.
3) A person or thing for which one is responsible (Dictionary.com).

responsible; → -ity.

responsible
  پاسخدار   
pâsoxdâr

Fr.: responsable   

1) Answerable or accountable, as for something within one's power, control, or management.
2) Involving accountability or responsibility (Dictionary.com).

response; → -able.

responsive
  پاسخنده   
pâsoxandé

Fr.: responsif, qui réagit bien   

1) Responding especially readily and sympathetically to appeals, efforts, influences, etc.
2) Physiology: Acting in response, as to some stimulus.
3) Characterized by the use of responses (Dictionary.com).

response; → -ive.

responsivity
  پاسخندگی   
pâsoxandegi

Fr.: responsivité   

A performance criterion for an electronic detector, the ratio of the detector's electrical output to its optical input.

responsive; → -ity.

rest
  آرَم   
âram

Fr.: au repos   

Cessation or absence of motion. → rest energy; → rest mass.

M.E.; O.E. ræste, reste "rest, bed, intermission of labor, mental peace," akin to O.H.G. rasta "league of miles," O.N. rost "league, distance after which one rests."

Âram, variant of ârâm "rest, quiet, tranquility;" Mid.Pers. râm "peace," râmenidan "to give peace, pleasure," râmišn "peace, pleasure;" Av. ram- "to stay, rest;" cf. Skt. ram- "to stop, stand still, rest, become appeased;" Gk. erema "quietly, gently;" Goth. rimis "rest;" Lith. rãmas "rest."

rest energy
  کاروژ ِ آرَم   
kâruž-e âram

Fr.: énergie au repos   

The energy which a particle has when it is at rest. According to Einstein's → mass-energy relation, it is equal to the → rest mass times the square of the → speed of light: E = mc2.

rest; → energy.

rest frame
  چارچوب ِ آرم   
cârcub-e âram

Fr.: référentiel au repos, repère ~   

The → frame of reference with respect to which an object or observer is at rest. A clock in that particular rest frame registers what is by definition → proper time. See also → moving frame.

rest; → frame.

rest mass
  جرم ِ آرَم   
jerm-e âram

Fr.: masse au repos   

The → inertial mass that an object has when it is at rest relative to an observer.

rest; → mass.

rest-mass energy
  کاروژ ِ جرم ِ آرَم   
kâruž-e jerm-e âram

Fr.: énergie au repos   

Same as → rest energy.

rest; → mass; → energy.

restoration
  بازسازی، بازگردانش   
bâzsâzi (#), bâzgardâneš

Fr.: restauration   

The act or process of restoring such as → image restoration.

Verbal noun of → restore.

restore
  بازساختن، بازگرداندن   
bâzsâxtan, bâzgardândan

Fr.: restaurer   

1) To bring back into existence, use, or the like; reestablish.
2) To bring back to a former, original, or normal condition, as a building, statue, or painting (Dictionary.com).

M.E., from O.Fr. restorer, from L. restaurare "repair, rebuild, renew," from → re- "back, again" + -staurare, from PIE root *sta- "to stand, set down, make or be firm," → state.

Bâzsâxtan, from bâz- "back, again," → re-, + sâxtan "to build, make, fashion; to adapt, adjust, be fit" (from Mid.Pers. sâxtan, sâz-, Manichean Parthian s'c'dn "to prepare, to form;" Av. sak- "to understand, to mark," sâcaya- (causative) "to teach").
Bâzgardândan, from bâz-+ gardândan "to turn (around)," accusative of gardidan, gaštan "to change, to turn, → revolve."

restored image
  تصویر ِ بازساخته   
tasvir-e bâzsâxté

Fr.: image restaurée   

An image that has been upgraded by a process of → image restoration.

Restored, p;p. of restore, → restoration; → image.

Tasvir, → image; bâzsâxté, p.p. of bâzsâxtan, → restoration.

restoring force
  نیروی ِ بازگردان، ~ بازساز   
niru-ye, bâzgardân, ~ bâzsâz

Fr.: force de rappel   

A force that comes into play after a system is perturbed away from the equilibrium, tending to bring the system back the equilibrium position. For example, when a pendulum is displaced from its equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position. The restoring force combined with the pendulum's mass causes it to oscillate about the equilibrium position.

restore; → force.

restrain
  بازداشتن   
bâzdâštan (#)

Fr.: restreindre   

To hold back from action; keep in check; repress; to limit or hamper the activity, or effect of.

M.E. restreynen, from O.Fr. restreindre "press, push together; curb, bridle;" from L. restringere "to draw back tightly, confine," from → re- "back" + stringere "draw tight," → strain.

Bâzdâštan, from bâz- prefix denoting "reversal, opposition," → re-, + dâštan "to hold," → property.

restrict
  فروداشتن، فروداریدن   
forudâštan, forudâridan

Fr.: restreindre   

To confine or keep within limits. → restricted three-body problem.

From L. restrictus, p.p. of restringere "to restrict, bind fast, restrain," from → re- "back" + stringere "to draw tight."

Forudâštan "to keep down, hold under control, bring to a halt" (Steingass, Dehxodâ), from foru- "down, downward," → de-, + dâšt past stem of dâštan "to have, to possess" (Mid.Pers. dâštan; O.Pers./Av. root dar- "to hold, keep back, maintain, keep in mind;" cf. Skt. dhr-, dharma- "law;" Gk. thronos "elevated seat, throne;" L. firmus "firm, stable;" Lith. daryti "to make;" PIE *dher- "to hold, support") + -an infinitive suffix.
Forudâridan, from foru- + dâr present stem of dâštan + -idan

restricted three-body problem
  پراسه‌ی ِ سه‌جسم ِ فروداریده   
parâse-ye seh jesm-e forudâridé

Fr.: problème restreint à trois corps   

A special case of the → three-body problem in which the → mass of one of the bodies is negligible compared to that of the two others. If the relative motion of the two massive components is a circle, the situation is referred to as the → circular restricted three-body problem. An example would be a space probe moving in the → gravitational fields of the → Earth and the → Moon, which revolve very nearly in circles about their common → center of mass.

restrict; → three; → body; → problem.

restriction
  فرودارش   
forudâreš

Fr.: restriction   

The act of restricting, the state or the condition of being restricted.

Verbal noun, → restrict + → -tion.

result
  بر‌آیه   
barâyé

Fr.: résultat   

General: Something that happens as a consequence; outcome.
Math.: A quantity, expression, etc., obtained by calculation. → resultant.

M.E. resulten (v.); L. resultare "to result," in classical L. "to spring forward, rebound," frequentative of p.p. of resilire "to rebound," from re- "back" + salire "to jump, leap."

Barâyé, literally "upcoming," from bar- "on; up; upon; 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") + ây- present stem of âmadan "to come, arrive, become" (Av. ay- "to go, to come," aēiti "goes;" O.Pers. aitiy "goes;" Skt. e- "to come near," eti "arrival;" L. ire "to go;" Goth. iddja "went," Lith. eiti "to go;" Rus. idti "to go") + -e nuance suffix.

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