An Etymological Dictionary of Astronomy and Astrophysics

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory



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Number of Results: 1076

Fr.: profil   

A graph or drawing that shows the variation of one property (such as intensity), usually as ordinate, with respect to another property (such as wavelength). → line profile.

From It. profilo "a drawing in outline," from profilare "to draw in outline," from → pro- "forth" + filare "draw out, spin," from L.L. filare "to spin, draw out a line," from filum "thread," cognate with Pers. zeh "cord, string," → filament.

Farâpâl, from farâ-, → pro-, + pâl "thread, string," probably cognate with L. filum, as above.

profile fitting method
  روش ِ سزکرد ِ فراپال   
raveš-e sazkard-e farâpâl

Fr.: méthode de l'ajustement de profils   

A method of analysis in which the observed stellar image profiles or spectral line profiles are fitted by model profiles in order to study and derive some properties of the object.

profile; → fitting; → method.


Fr.: progéniteur   

The originator of a line of descent; a precursor.

M.E., from O.Fr. progeniteur, from L. progenitorem "ancestor," agent noun from progenitus, p.p. of progignere "beget," from → pro- "forth" + gignere "to produce, beget," cognate with Pers. zâdan, as below.

Agent noun from zâdan "to bring forth, give birth" (Mid.Pers. zâtan; Av. zan- "to bear, give birth to a child, be born," infinitive zazāite, zāta- "born;" cf. Skt. janati "begets, bears," janitár "progenitor, father;" Gk. genetor "progenitor;" L. gignere "to beget," nasci "to be born," as above, PIE base *gen- "to give birth, beget").

progenitor galaxy
  کهکشان ِ زادار   
kahkešân-e zâdâr

Fr.: galaxie mère   

A galaxy which is supposed to be at the origin of a specific event, for example a hypothetical galaxy in which globular clusters might have formed.

progenitor; → galaxy.

progenitor star
  ستاره‌ی ِ زادار   
setâre-ye zâdâr

Fr.: étoile mère   

A star which is supposed to be at the origin of phenomenon, for example a progenitor neutron star which has given rise to a black hole.

progenitor; → star.

prograde motion
  جنبش ِ فرارو   
jonbeš-e farârow

Fr.: mouvement prograde   

A rotational or orbital movement that is the same as most bodies within a celestial system. In the solar system, the apparent eastward motion of a celestial body on the celestial sphere. Opposed to → retrograde motion. Same as → direct motion.

From → pro- "forward" + grade, from L. gradi "to go, step, walk;" → motion.

Jonbeš, → motion; farârow, from farâ- "forward," → pro-, + row present stem of raftan "to go, walk;" Mid.Pers. raftan, raw-, Proto-Iranian *rab/f- "to go; to attack."

prograde orbit
  مدار ِ فرارو   
madâr-e farârow

Fr.: orbite prograde   

Same as →prograde motion.

prograde motion; → orbit.

barnâmé (#)

Fr.: programme   

A plan or schedule of activities, procedures, etc., to be followed.
Computers: A precise sequence of instructions in a programming language that tells a computer to perform a task.

From L.L. programma "proclamation, edict," from Gk. programma "a written public notice," from the stem of prographein "to write publicly," from → pro- "forth" + graphein "to write."

Barnâmé, originally "model, examplar; acount-book," 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") + nâmé "letter; book" (Mid.Pers. nâmak "inscription; letter; book," related to nâm "name;" Mid.Pers. nâm; O.Pers./Av. nâman-; cf. Skt. nama-; Gk. onoma, onuma; L. nomen; PIE *nomen-).

program stars
  ستارگان ِ برنامه   
setâregân-e barnâmé

Fr.: étoiles du programme   

Stars for the observation of which telescope time has been awarded.

program; → star.

barnâme sâz (#)

Fr.: programmeur   

A computer expert who carries out → programming.

Agent noun of the verb → program.

barnâme-sâzi (#)

Fr.: programmation   

The process of writing, testing, debugging/troubleshooting, and maintaining the source code of computer programs.

Verbal noun of → program.

Barnâme-sâzi, from barnâmé, → program, + sâzi verbal noun of sâxtan, sâzidan "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," sācaya- (causative) "to teach").

farâyâzi (#)

Fr.: progression   

Math.: A succession of numbers or quantities in which there is a constant relation between each member and the one succeeding it. See also → arithmetic progression, → geometric progression, → harmonic progression.

From O.Fr. progression, from L. progressionem "a going forward," from progressus, p.p. of progredi "go forward," from → pro- "forward" + gradi "to step, walk," from gradus "step."

Farâyâzi, from farâ-, → pro-, + yâzi, verbal noun of yâzidan "to stretch out the arms; grow up;" Parthian Mid.Pers. y'd "to reach a goal, come to, stretch out;" Av. yat- to reach, take one's place," yaiiata "places,' frā-iiatāt "has reached;" cf. Skt. yat- "to be in place, put in place, line up;" PIE base *iet- "to be in place."

  ۱) فراشان؛ ۲) فراشاندن   
1) farâšân; 2) farâšândan

Fr.: 1) projet; 2) projeter   

1) (n.) A specific task or planned program of investigation, especially in scholarship.
2a) (v.) To propose, contemplate, or plan.
2b) To throw or cause to fall upon a surface or into space, as a ray of light or a shadow.
2c) To cause (a figure or image) to appear, as on a background.
2d) Geometry: To transform the points of one figure into those of another by a correspondence between points.

1) From L. projectum "something thrown forth," noun use of neuter of projectus, p.p. of projicere "to stretch out, throw forth," from → pro- "forward" + combining form of jacere (p.p. jactus) "to throw."
2) From L. projectus, as above.

Farâšândan, from farâ- "forward," → pro- + šândan, from ešândan "to eject," from Hamadâni ešândan "to throw out," Laki owštan "to throw, to shoot (with bow and arrow);" Lori šane "throwing," šane kerde "to throw;" Av. ah- "to throw," present ahya- "throws," asta- "thrown, shot," astar- "thrower, shooter;" cf. Khotanese ah- "to throw, shoot," Skt. as- "to throw, shoot," ásyati "throws," ásana- "throw, shot," asanā- "missile."

project director
  راشتار ِ فراشان   
râštâr-e farâšân

Fr.: directeur de recherche   

A person who directs a project.

project; → director.

project manager
  گنارگر ِ فراشان   
gonârgar-e farâšân

Fr.: chef de projet   

A person who is responsible for directing and controlling the work and staff of a project.

project; → manager.

projected rotational velocity
  تندای چرخشی ِ فراشانده   
tondâ-ye carxeši-ye farâšândé

Fr.: vitesse rotationnelle projetée   

The → angular velocity of a star deduced from the → rotational broadening of its → spectral lines. It is expressed as v sini, where i is the → inclination of the rotational axis with respect to the normal to the → plane of the sky. The real equatorial rotational velocity can be determined only if the inclination of the rotational axis is known.

Projected, p.p. of → project; → rotational; → velocity.

partâbé (#)

Fr.: projectile   

A body projected or impelled forward, as through the air.

From Mod.L. projectilis, from L. projectus, p.p. of proicere; → project.

Partâbé, from partâb "a throw, an arrow that flies far," partâbidan "to throw," from Proto-Iranian *para-tau-, from *para- "forward," → pro- + *tau- "to throw, spread, sow;" cf. Tabari tâb "throwing," tâb dəən "to throw;" Chorasmian mftw- "to perish, be destroyed, disturbed;" Ossetic aeftawyn "to throw on; to increase; to pull out."


Fr.: projection   

1) The act, process, or result of projecting.
2) The act of reproducing on a surface, by optical means, a remote image on a film, slide, etc.

Verbal noun of → project.

  فراشانگر، فراشاننده   
farâšângar, farâšânandé

Fr.: projecteur   

An apparatus for projecting an image from a film, a slide onto a screen.
A device for projecting a beam of light.

project + → -or.

kešidé (#)

Fr.: allongé   

Elongated in the direction of the polar diameter; opposed to → oblate

From L. prolatus, pt.p. of proferre "to bring forward, extend," from → pro- + → oblate.

Kešidé p.p. of Mod./Mid.Pers. kešidan, kašidan "to draw, protract, trail, drag, carry," dialectal Yaqnavi xaš "to draw," Qomi xaš "streak, stria, mark," Lori kerr "line;" Av. karš- "to draw; to plow," karša- "furrow;" Proto-Iranian *kerš-/*xrah- "to draw, plow;" cf. Skt. kars-, kársati "to pull, drag, plow;" Gk. pelo, pelomai "to move, to bustle;" PIE base kwels- "to plow."

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