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
recombination radiation
  تابش ِ بازمیازش   
tâbeš-e bâzmiyâzeš

Fr.: rayonnement de recombinaison   

Radiation produced when a free electron in a plasma is captured by an ionized atom.

recombination; → radiation.

recombination rate
  نرخ ِ بازمیازش   
nerx-e bâzmiyâzeš

Fr.: taux de recombinaison   

In → H II regions the rate at which free electrons recombine with → ionized hydrogen atoms (protons).

recombination; → rate.

recombination time
  زمان ِ بازمیازش   
zamân-e bâzmiyâzeš

Fr.: temps de recombinaison   

The time period necessary for a cloud of atomic hydrogen to be → ionized by the ultraviolet photons of a central → massive stars.

recombination; → time.

recombine
  بازمیازیدن   
bâzmiyâzidan

Fr.: recombiner, se recombiner   

To combine or put together again. To undergo or cause recombination.

re- + → combine.

reconcile
  آشتیدن، آشتی کردن   
âštidan, âšti kardan (#)

Fr.: réconcilier   

1) To cause (a person) to accept or be resigned to something not desired.
2) To win over to friendliness; cause to become amicable.
3) To compose or settle (a quarrel, dispute, etc.); to bring into agreement or harmony; make compatible or consistent (Dictionary.com).

Infinitive of → reconciliation.

reconciliation
  آشتی   
âšti (#)

Fr.: réconciliation   

1) An act of reconciling, as when former enemies agree to an amicable truce.
2) The state of being reconciled, as when someone becomes resigned to something not desired.
3) The process of making consistent or compatible (Dictionary.com).

From O.Fr. reconciliacion and directly from L. reconciliationem noun of action from p.p. stem of reconciliare. "to bring together again; regain," from → re- "again" + concilare "make friendly"

šti, from Mid.Pers. âštêh "peace;" Av. āšti- "peace, treaty of peace; agreement," āxšta-- "pacified, appeased."

record
  ۱) واگت؛ ۲) واگتیدن   
1) vâgat; 2) vâgatidan

Fr.: 1) enregistrement; 2) enregistrer   

1a) An act of recording.
1b) The state of being recorded, as in writing.
1c) Something on which sound or images have been recorded for subsequent reproduction, as a grooved disk that is played on a phonograph or an optical disk for recording sound (audiodisk) or images (videodisk).
2a) To set down in writing or the like, as for the purpose of preserving evidence.
2b) To set down or → register in some permanent form, as on a seismograph.
2c) To set down, register, or fix by characteristic marks, incisions, magnetism, etc., for the purpose of reproduction by a phonograph or magnetic reproducer; to make a recording of.

From M.E. recorden "to repeat, to report," from O.Fr. recorder "to get by heart," from L. recordari "to call to mind, remember," from → re- "back, again" + cor "heart" (as the metaphoric seat of memory, as in learn by heart).

Vâgat literally "to take, seize, to take back," cf. Ger. aufnehmen "to record," from nehmen "to take;" E. "take down" "to note down;" Šahmirzâdi vagatan "to take," Lâhijâni vitan, "to take, seize," Aftari veytu "to take," Delijâni bitan "to take," Tâleši gate, Târi gata/ger, Sorxeyi gil, all variants of gereftan, → concept.

rectangle
  راستگوشه   
râstgušé (#)

Fr.: rectangle   

A → quadrilateral all of whose angles are → right angles.

M.Fr. rectangle, from M.L. rectangulum "a triangle having a right angle," from rect-, combining form of rectusright + angulum, → angle.

Râstgušé, from râst, → right, + gušé "corner, angle;" Mid.Pers. gôšak "corner."

rectangular
  راستگوش   
râstguš (#)

Fr.: ractangulaire   

Having the base or section in the form of a rectangle. Shaped like a rectangle.

Adj. of → rectangle.

rectangular window
  روزنه‌ی ِ راستگوش   
rowzane-ye râstguš

Fr.: fenêtre rectangulaire   

A → window function that is constant inside a specified interval.

rectangular; → window.

rectification
  راستش   
râsteš

Fr.: rectification   

1) Math.: The process of determining the length of a curve.
2) Physics: Conversion of an alternating into a direct current.
3) Astro.: The process of rectifying a spectrum.

Verbal noun of → rectify.

rectified spectrum
  بیناب ِ راستیده   
binâb-e râstidé

Fr.: spectre rectifié   

A spectrum after correction for detector's → baseline.

Rectified p.p. of → rectify; → spectrum.

rectifier
  راستگر   
râstgar

Fr.: rectificateur   

1) General: A person or thing that rectifies.
2) Physics: A device for transforming an → alternating current into a → direct current.

Agent noun of → rectify.

rectify
  راستیدن، راست گرداندن   
râstidan, râstgardândan

Fr.: rectifier   

1) General: To make, put, or set right; to correct.
2) Electricity: To convert an → alternating current into a → direct current.
3) Chem.: To refine a substance, especially by repeated distillation or sublimation.

M.E. rectifien, from O.Fr. rectifier "to make straight," from L.L. rectificare "make right," from L. rectus "straight," cognate with Pers. râst, as below, → right + root of facere "to make, do, perform" (cf. Fr. faire, Sp. hacer), from PIE base *dhe- "to put, to do" (cf. Mod.Pers. dâdan "to give;" O.Pers./Av. dā- "to give, grant, yield," dadāiti "he gives; puts;" Skt. dadáti "puts, places;" Hitt. dai- "to place;" Gk. tithenai "to put, set, place;" Lith. deti "to put;" Czech diti, Pol. dziac', Rus. det' "to hide," delat' "to do;" O.H.G. tuon, Ger. tun, O.E. don "to do").

Râstidan, literally "to make straight, right," infinitive from râst cognate with L. rectus "straight," → right.

rectilinear
  راست-خط   
râst-xatt (#)

Fr.: rectiligne   

In a straight line; consisting of straight lines. → curvilinear

From recti- combining form of rectus, → right, + → line + -ar, variant of the adjective-forming suffix → -al.

Râst-xatt, from râst, → right, + xattline.

rectilinear propagation of light
  توچش ِ راست‌خط ِ نور   
tuceš-e râst-xatt-e nur

Fr.: propagation rectiligne de la lumière   

The motion of light in the first approximation, as evidenced from the formation of shadows and other every day experience. However, → diffraction

rectilinear; → propagation; → light.

rectilinear system
  راژمان ِ راست‌خط   
râžmân-e râst-xatt

Fr.: système rectilinéaire   

An optical system that is corrected for → distortion and → spherical aberration and therefore forms the image of a straight line as a straight line.

rectilinear; → system.

recur
  باز‌آمدن   
bâzâmadan

Fr.: se reproduire périodiquement, revenir   

To occur again, as an event, experience, etc.

From L. recurrere "to return, run back," → re- + currere "to run," → current.

Bâzâmadan "to come back, return," from bâz, → re-, + âmadan "to come, arrive, become" (present stem ây-); 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."

recurrence
  باز‌آمد   
bâzâmad

Fr.: récurrence   

1) An act or instance of recurring.
2) Return to a previous condition, habit, subject, etc. (Dictionary.com). → recurrence relation.

Verbal noun of → recur.

recurrence relation
  باز‌آنش ِ باز‌آمد   
bâzâneš-e bâzâmad

Fr.: relation de recurrence   

A → sequence based on a → rule that gives the next → term as a → function of the previous term(s). For example, the sequence 3, 9, 21, 45,... can be represented by the recurrence relation un+1 = 2un + 3, where u1 = 3 and n ≥ 1.

recurrence; → relation.


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