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
aerology
  جوشناسی، جوشناخت   
javvšenâsi, javvšenâxt

Fr.: aérologie   

A subdivision of meteorology concerned with the total vertical extent of the atmosphere as opposed to the study of the atmosphere near Earth's surface.

Aerology from Gk. aero- "air" + Gk. logia "study of," from legein "to speak".

Javvšenâsi, from Ar. javv "air, atmosphere" + šenâsi "knowledge, knowing," from šenâxtan "to know," from Av./O.Pers. xšnâ "to learn, come to know, know," compare with Skt. jna "to know," Gk. gignoskein "to know, think, judge," L. gnoscere, noscere "to come to know," PIE *gno- "to know."

aeronautics
  هوانوردی   
havânavardi (#)

Fr.: aéronautique   

The science and technology concerned with designing, constructing, and operating machines capable of flying in the atmosphere.

From aeronautic, from Fr. aéronautique, from aéro-, from Gk. aer, → air, + nautique "of ships," from L. nauticus, from Gk. nautikos, from naus "ship" (cognate with Mod.Pers. nâv "ship;" Av./O.Pers. *nāv-, O.Pers. nāviyā- "fleet;" Skt. nau-, nava- "ship, boat;" Gk. naus, neus, L. navis; PIE *nāu- "ship").

Havânavardi, from havâ, → air, + navardi, verbal noun of navardidan "to travel, walk, pass by and over."

aeronomy
  آیرونومی   
âyronomi

Fr.: aéronomie   

The study of processes in the the upper atmosphere, especially of regions of ionized gas, from stratosphere to interplanetary space.

From Gk. aer- "weather" + nomos "arranging, regulating," related to nemein "to deal out," → -nomy.

aerosol
  هوالو   
havâlu

Fr.: aérosol   

A suspension of fine solid or liquid particles in a gas.

Aerosol from aero "air" + sol(ution).

Havâlu from havâ "weather" + lu from → luyé, luyeš, → solution.

aesthetic
  زیباییک، زیبایی‌شناختی، زیبا   
zibâyik, zibâyi-šenâxti, zibâ

Fr.: esthétique   

Relating to the philosophy of → aesthetics.

Adjective from → aesthetics.

aesthetics
  زیباییک، زیبایی‌شناسی   
zibâyik (#), zibâyi-šenâsi

Fr.: esthétique   

1) The branch of philosophy dealing with such notions as the beautiful, the ugly, the sublime, the comic, etc., as applicable to the fine arts, with a view to establishing the meaning and validity of critical judgments concerning works of art, and the principles underlying or justifying such judgments.
2) The study of the mind and emotions in relation to the sense of beauty (Dictionary.com).

From Ger. Ästhetisch or Fr. esthétique, both from Gk. aisthetikos "sensitive, perceptive," from aisthanesthai "to perceive, to feel."

Zibâyik, from zibâ "beautiful, elegant, adorned," → beauty, + -ik, → -ics.

affine
  کروَن   
karvan

Fr.: affine   

Math.: Of or pertaining to the geometry of → affine transformations. See also: → affine combination, → affine geometry, → affine set, → affinity.

From Fr., from L. affinis "bordering on; neighboring; related."

Karvan, literally "bordering on; possessing border (with); related," from (Bašgard) ker "border, boundary," (Fin Bandar Abbas) karaq "border, edge;" classical Pers. karân, kenâr "boundary, side, edge;" + -van suffix of possession, relation.

affine combination
  میازش ِ کروَن   
miyâzeš-e karvan

Fr.: combinaison affine   

A linear combination of vectors in which all the vector coefficients add up to one.

affine; → combination.

affine geometry
  هندسه‌ی ِ کروَن   
hendese-ye karvan

Fr.: géométrie affine   

The study of the properties which are → invariant under → affine transformations.

affine; → geometry.

affine set
  هنگرد ِ کروَن   
hangard-e karvan

Fr.: ensemble affine   

A set → if and only if (iff) for any two points in the → set, the line through them is contained in the set. In other words, for any two points in the set, their → affine combinations are in the set itself.

affine; → set.

affine transformation
  ترادیس ِ کروَن   
tarâdis-e karvan

Fr.: transformation affine   

Any → transformation preserving → collinearity.

affine; → transformation.

affinity
  کروَنی   
karvani

Fr.: affinité   

1) General: A relationship or resemblance.
2) Math.: The state, quality, or fact of being → affine.

affine; → -ity.

affirm
  بردشیدن   
bardešidan

Fr.: affirmer   

To state or assert positively; maintain as true.

M.E. affermen, affirmen "to decide upon; to state positively," from O.Fr. afermer "affirm, confirm; strengthen," from L. affirmare "to make steady, strengthen," from → ad- "to" + firmare "strengthen, make firm," from firmus, → firm.

Baedešidan, from bar- "upon, to," + deš, → firm, + infinitive suffix -idan.

affirmation
  بردش   
bardeš

Fr.: affirmation   

The act of affirming or something affirmed.

Verbal noun of → affirm.

affix
  وند   
vand (#)

Fr.: affixe   

A linguistic element added to a word or root to produce a derived or inflected form. General term for → infix, → prefix, → suffix, and → circumfix.

From L. affixus "fastened to," p.p. of affigere "fasten to, attach," from af-, variant of → ad- "to" + figere "fasten."

Vand, variant band "tie, band," present stem of Mod.-Mid./Pers. bastan/vastan "to bind, shut;" Av./O.Pers. band- "to bind, fetter," banda- "band, tie;" cf. Skt. bandh- "to bind, tie, fasten;" PIE *bhendh- "to bind," cf. Ger. binden, E. bind.

afocal
  اکانون، بی‌کانون   
akânun, bikânun (#)

Fr.: afocal   

Describing a lens or optical system with a convergent power of zero, whose object and image points stretch to infinity. Thus, → afocal system.

Afocal, from → a- + → focal.

Akânun, from a- negation prefix, → a- + kânun, → focus. Bikânun, from bi- negation prefix + kânun, → focus.

afocal system
  راژمان ِ اکانون   
râžmân-e akânun

Fr.: système afocal   

An optical system with object and image points at infinity.

afocal; → system.

after
  پس، پسان   
pas, pasân (#)

Fr.: après   

1) Behind in place or position; following behind.
2) Later in time than; in succession to; at the close of (Dictionary.com).

M.E., from O.E. æfter "after, next, following in time," from O.E. of "off," cf. apo- + -ter a comparative suffix.

Pas "after," → back-; pasân with place/time suffix -ân.

afterglow
  پسفروز   
pasforuz

Fr.:   

1) A broad glowing arc of radiance, sometimes seen high in the western sky at → twilight, caused by the → scattering effect of → fine dust particles suspended in the → upper atmosphere.
2) Lingering → radiation that remains after a violent → event such as a → gamma-ray burst. The afterglow of any gamma-ray burst is caused by an event different from the original explosion, likely by → shock waves colliding with the ambient medium. Afterglows occur in a large range of → electromagnetic  → wavelengths.

after; → glow.

afternoon
  پس-نیمروز، پس از نیمروز   
pas-nimruz, pas az nimruz

Fr.: après-midi   

The part of day from → noon to → evening.

after; → noon.


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