An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 128 Search : form
formalize
  دیسه‌ور کردن، دیسه‌وریدن   
disevar kardan, disevaridan

Fr.: formaliser   

1) To state in symbolic form; to give a definite structure to.
2) To give something legal or formal status.

From → formal + → -ize.

Compound verb, from disevar, → formal, + kardan "to do, to make;" Mid.Pers. kardan; O.Pers./Av. kar- "to do, make, build;" Av. kərənaoiti "he makes;" cf. Skt. kr- "to do, to make," krnoti "he makes, he does," karoti "he makes, he does," karma "act, deed;" PIE base kwer- "to do, to make."

format
  ۱) دیسار؛ ۲) دیساریدن   
1) disâr; 2) disâridan

Fr.: 1) format; 2) formater   

1) General: The way in which something is presented, organized, or arranged.
Publishing: The shape and size of a book, magazine, or newspaper, including the typeface, binding, quality of paper, margins, etc.
Computers: The structure or arrangement of digital data in a specific type of file. A computer program accepts data as input in a certain format, processes it, and provides it as output in the same or another format.
2) Computers: To prepare a storage medium, usually a disk, for reading and writing.

From Fr. format, from Mod.L. liber formatus "a book formed" (in such and such a way), referring to shape, size; from formatus p.p. of formare "to form," → form.

1) Disâr, from dis, → form + -âr contraction of âvar agent noun of âvardan "to bring; to cause, produce" (Mid.Pers. âwurtan, âvaritan; Av. ābar- "to bring; to possess," from prefix ā- + Av./O.Pers. bar- "to bear, carry," bareθre "to bear (infinitive)," bareθri "a female that bears (children), a mother;" Mod.Pers. bordan "to carry;" Skt. bharati "he carries;" Gk. pherein; L. fero "to carry").
2) Infinitive from dis, → form.

formation
  دیسش   
diseš

Fr.: formation   

1) The act or process of forming or the state of being formed, such as → star formation.
2) Geology: A laterally continuous rock unit with a distinctive set of characteristics that make it possible to recognize and map from one → outcrop or well to another. The basic rock unit of stratigraphy.

Verbal noun of → form, + -ate + -ion.

Diseš, verbal noun of disidan, → from dis-, → form, + -eš.

formatting
  دیسارش   
disâreš

Fr.: formatage   

The process of preparing a hard disk or other storage medium for use by an operating system. Before a hard disk can be used, it needs to be formatted so that it will be able to store files and applications.

format; → -ing.

formic acid (HCOOH)
  سید فورمیک   
asid formik (#)

Fr.: acide formique   

A colorless, corrosive fuming liquid with pungent odor. It occurs in various plants and in the venom of many ant species. Used in dyeing, tanning, and electroplating. Also called methanoic acid. HCOOH is the simplest organic acid and the first identified in the interstellar medium (Zuckerman et al. 1971, ApJ, 163, L41). It has been observed principally in star-forming regions such as Orion KL, Sgr B2, Sgr A, and W51 and is associated with → hot molecular cores and → massive star formation. Recently, it has also been shown to be present in some → hot corinos associated with formation of stars similar to our Sun. Due to the presence of carboxyl radical (COOH), it plays an important role in the pathway formation of → prebiotic molecules like amino acids, in the interstellar clouds and comets (see, e.g., Lattanzi et al. 2008, ApJS 176, 536).

From L. formica "ant," ultimately from from PIE *morwi-, *wormiko- "ant;" cf. Av. maoiri-; Mid.Per. môr; Pers. mur, murcé "ant;" Skt. vamra- "ant;" Gk. murmeks, wormikas; O.C.S. mraviji; O.Ir. moirb; O.N. maurr.

formula
  دیسول   
disul

Fr.: formule   

1) Physics, Math.: A statement of facts in a symbolical or general form, by substitution in which a result applicable to particular data may be obtained.
2) Chemistry: An expression of the constituents of a compound by symbols and figures.

From L. formula "form, rule, method, formula," literally "small form," from forma, → form, + → -ule diminutive suffix.

Disul, from dis, → form, + -ul, → -ule.

formulate
  دیسولیدن   
disulidan

Fr.: formuler   

To express in precise → form; state definitely or systematically. To reduce to or express in a → formula.

Verbal form of → form.

formulation
  دیسولش   
disuleš

Fr.: formulation   

1) The act or process of formulating.
2) A particular expression of an idea, thought, or theory.
3) Something prepared according to a → formula.

formulate; → -tion.

Fourier transform
  ترادیس ِ فوریه   
tarâdis-e Fourier

Fr.: transformée de Fourier   

A powerful mathematical tool which is the generalization of the → Fourier series for the analysis of non-periodic functions. The Fourier transform transforms a function defined on physical space into a function defined on the space of frequencies, whose values quantify the "amount" of each periodic frequency contained in the original function. The inverse Fourier transform then reconstructs the original function from its transformed frequency components. The integral F(α) = ∫ f(u)e-iαudu is called the Fourier transform of F(x) = (1/2π)∫ f(α)eiαxdx, both integrals from -∞ to + ∞.

Fourier analysis; → transform.

galaxy formation
  دیسش ِ کهکشان   
diseš-e kahkešân

Fr.: formation de galaxies   

The study dealing with the processes that gave rise to galaxies in a remarkably → early Universe. See also → structure formation, → protogalaxy

galaxy; → formation.

Galilean transformation
  ترادیس ِ گالیله‌ای   
tarâdis-e Gâlile-yi (#)

Fr.: transformation galiléenne   

The method of relating a measurement in one → reference frame to another moving with a constant velocity with respect to the first within the → Newtonian mechanics. The Galilean transformation between the coordinate systems (x,y,z,t) and (x',y',z',t') is expressed by the relations: x' = x - vt, y' = y, z' = z. Galilean transformations break down at high velocities and for electromagnetic phenomena and is superseded by the → Lorentz transformations.

Galilean, of or pertaining to Galileo Galilei (1564-1642), Italian physicist and astronomer; → transformation.

gauge transformation
  ترادیس ِ گز   
tarâdis-e gaz (#)

Fr.: transformation de jauge   

A change of the fields of a gauge theory that does not change the value of any measurable quantity.

gauge; → transformation.

grain formation
  دیسش ِ دانه   
diseš-e dâné

Fr.: formation des grains   

The process by which dust grains are assembled or produced.

grain; → formation.

Hamiltonian formalism
  دیسه‌گرایی ِ هامیلتون   
disegerâyi-ye Hamilton

Fr.: formalisme de Hamilton   

A reformulation of classical mechanics that predicts the same outcomes as classical mechanics. → Hamiltonian dynamics.

Hamiltonian; → mechanics.

hierarchical structure formation
  دیسش ِ ساختار ِ پایگانی   
diseš-e sâxtâr-e pâygâni

Fr.: formation de structures hiérarchiques   

A cosmological → structure formation model in which the smallest gravitationally bound structures (→ quasars and galaxies) form first, followed by → groups, → galaxy clusters, and → superclusters of galaxies.

hierarchical; → structure; → formation.

image formation
  دیسش ِ تصویر   
diseš-e tasvir

Fr.: formation de l'image   

The meeting of light rays emanating from an object after crossing an optical system.

image; → formation.

inform
  ازداییدن   
azdâyidan (#)

Fr.: informer   

1) To impart → knowledge of a fact or circumstance.
2) To supply (oneself) with knowledge of a matter or subject (dictionary.com).
3) To convey → information.
See also: → informatics, → information theory.

Inform, from M.E. informen, from O.Fr. enformer, from L. informare "to shape, form; to form an idea of," from → in- "into" + → forma "form."

Azdâyidan, from Mid.Pers. azdênidan "to inform," from azd "information, proclamation; known" (loaned into Arm. azd), from O.Pers. azdā "known," azdā kar "to become known;" Av. azdā "known;" Sogdian 'zd' "informed, known;" cf. Skt. addhā' "manifestly; certainly, truly," addhāti "sage."

informant
  ازداینده   
azdâyandé

Fr.: informateur   

A person who gives → information.

From → inform + -ant a suffix forming adjectives and nouns from verbs.

informatics
  ازداییک   
azdâyik (#)

Fr.: informatique   

The science concerned with gathering, manipulating, storing, retrieving, and classifying recorded → information. Also called → information science, computer science.

Informatics, from informat(ion), → information + → ics.

information
  ازدایش   
azdâyeš (#)

Fr.: information   

1) Knowledge gained through study, communication, research, instruction, etc.
2) Knowledge communicated or received concerning a particular fact or circumstance; news.
3) The act or fact of informing.
4) A sequence of signals that conveys a message to a receiver. Information does not exist on its own. It is contained within something and is coded. The notion of information involves → uncertainty and → randomness; hence the necessity for calling on → probability theory and → statistics.
See also: → information content, → information entropy, → information flow, → information paradox, → information science, → information technology, → information theory, → infosphere, → quantum information, → entropy.

Verbal noun of → inform.

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