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
increment
  فزایه   
fazâyé

Fr.: incrément   

The amount by which a varying quantity increases between two of its stages. In → calculus, the Greek letter Δ (delta) is used to denote an increment; e.g. Δx is an increment of x, contrasted to → decrement.

Increment, from L. incrementum "growth, increase," from stem of increscere "to grow in or upon" from → in- "in" + crescere "to grow."

Fazâyé, from fazâ shortened present stem of afzudan "to add, increase" (Mid.Pers. abzudan "to increase, grow;" O.Pers. abijav- "to increase, add to, promote," from abi-, aiby- "in addition to; to; against" + root jav- "press forward;" Av. gav- "to hasten, drive;" Skt. jav- "to press forward, impel quickly, excite," javate "hastens") + -y- euphonic infix + noun/nuance suffix.

indefinite
  ناهدارمند، ناهدار   
nâhedârmand, nâhedâr

Fr.: indéfini   

Not → definite; without fixed or specified limit.

From → in- "not, without" + → definite.

indefinite integral
  دُرُستال ِ ناهدارمند   
dorostâl-e nâhedârmand

Fr.: intégrale indéfinie   

Math.: An integral without upper and lower limits. The general antiderivative of a function. → definite integral.

definite; → integral.

independent
  ناوابسته   
nâvâbasté (#)

Fr.: indépendant   

Not dependent.

From negation prefix → in- + → dependent.

independent events
  رویدادهای ِ ناوابسته   
ruydâdhâ-ye nâvâbasté (#)

Fr.: événements indépendants   

Statistics: Two events if the occurrence of one of them gives no → information about whether or not the other event will occur; these events have no influence on each other.

independent; → event.

independent random variables
  ورتنده‌های ِ کاتوره‌ی ِ ناوابسته   
vatandehâ-ye kâture-ye nâvâbasté

Fr.: variables aléatoires indépendantes   

Statistics: Two random variables X and Y if and only if the value of X has no influence on the value of Y and vice versa.

dependent; → random; → variable.

independent variable
  ورتنده‌ی ِ ناوابسته   

Fr.: variable indépendante   

Math.: A variable whose value determines the value of other variables. For example, x, in the expression y = f(x), is the independent variable. See also → dependent variable.

independent; → variable.

indeterminism
  ناترم‌باوری   
nâtarmbâvari

Fr.: indéterminisme   

Philosophy: The doctrine that there are events which do not correspond with determinism and therefore are uncaused in some sense.
Quantum physics: The claim that the most basic constituents of matter behave indeterministically, in accordance with such properties as the → uncertainty principle.

in-; → determinism.

Nâtarmbâvari, nâtarmvari, from nâ- negation prefix + (â)tarmbâvari, (â)tarmvari, → determinism.

index
  ۱، ۲، ۳) دیشن؛ ۴) فهرست   
1, 2, 3) dišan; 4) fehrest (#)

Fr.: 1, 2) indice; 3) index   

1) Math.: A number or symbol, often written as a → subscript or → superscript to a mathematical expression, that indicates an operation to be performed, an ordering relation, or a use of the associated expression.
2) Physics: A measure of a particular property; e.g. → adiabatic index; → color index; → index of refraction.
3) In some → astrolabes, the → rule.
4) A sequential arrangement of items, especially in alphabetical or numerical order. → Index Catalogue.

Index, from L. index "forefinger, pointer, sign," literally "anything which points out," from indicare "point out, show," from in- "in" + dicare "to proclaim," from stem of dicere "to speak, to say;" PIE base *deik- "to point out" (cf. Av. daēs- " to show;" Skt. dic- "to point out, show;" Gk. deiknynai "to prove;" O.H.G. zeigon; Ger. zeigen "to show;" O.E. teon "to accuse," tæcan "to teach").

1) Dišan, from diš-, simple aorist of Av. daēs- "to show," as above, + suffix -an.
2) Fehrest, from Mid.Pers. payrâstag "arranged," from payrâstan "to arrange; to adorn" (Mod.Pers. pirâstan); Proto-Ir. *pati-rāsta-, from *pati "to, at, for, in" (cf. Mid.Pers. pad "to, at, for, in;" Mod.Pers. be, beh; Old.Pers. paity; Av. paiti "to, toward, in, at;" Skt. práti; Gk. poti) + *rād- "to direct, arrange" (cf. Mod.Pers. raj "line, row," variants raž, rak, râk, rezg (Lori), ris, risé, radé, rasté, râsté, related to râst "right, true; just, upright, straight;" Mid.Pers. râst "true, straight, direct;" Sogdian rəšt "right;" O.Pers. rāsta- "straight, true," rās- "to be right, straight, true;" Av. rāz- "to direct, put in line, set," razan- "order;" cf. Skt. raj- "to direct, stretch," rjuyant- "walking straight;" Gk. orektos "stretched out;" L. regere "to lead straight, guide, rule," p.p. rectus "right, straight;" PIE base *reg- "move in a straight line," hence, "to direct, rule").

Index Catalogue (IC)
  کاتالوگ ِ فهرست   
kâtâlog-e fehrest

Fr.: Index Catalogue   

Either of two catalogues of non-stellar objects, which serve as supplements to the → New General Catalogue.

index; → catalog

index of refraction
  دیشن ِ شکست   
disšan-e šekast

Fr.: indice de réfraction   

Same as → refractive index.

index; → refraction.

Indian numeral system
  راژمان ِ عددهای ِ هندی   
râžmân-e adahâ-ye Hendi

Fr.: numération indienne   

The → numeral system consisting of the numerals 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 which evolved into the system we use today. The Indian numerals was a place-value or positional system. The Indians were the first to develop a base 10 positional system. Same as → Hindu-Arabic numeral system.

Indian, from India, → Indus; → numeral; → system.

indigo
  نیل   
nil (#)

Fr.: indigo   

A color between blue and violet.

From Sp. indico, Portuguese endego, and Du. (via Portuguese) indigo, from L. indicum "indigo," from Gk. indikon "blue dye from India," literally "Indian (substance)," neuter of indikos "Indian," → Indus.

Nil "indigo color; the indigo plant;" Mid.Pers. nil; cf. Skt. nīlī, nīlā "the indigo plant; indigo color."

indirect
  ناسرراست   
nâsarrâst (#)

Fr.: indirect   

Not in a direct course, path, action, or procedure.

in-; → direct.

indirect object
  کندار ِ ناسرراست   
kondâr-e nâsarrâst

Fr.: objet indirect   

A word or group of words representing the person or thing with reference to which the action of a verb is performed. In English generally coming between the verb and the direct object and paraphrasable as the object of a preposition, usually to or for, following the direct object, as the boy in He gave the boy a book (Dictionary.com).

indirect; → object.

individual
  تکال   
takâl

Fr.: 1) individu; 2) individuel   

1a) A single human being, as distinguished from a group (Dictionary.com).
1b) A distinct, indivisible entity; a single thing, being, instance, or item (Dictionary.com).
1c) Logic: An → object or element taken as the → subject of the → predicates of → first-order logic.
2) Of, pertaining to, or characteristic of a particular person or thing. → individual constant, → individual variable.

M.E., from M.L. individualis, from L. individuus "indivisible," from → in- "not, opposite of" + dividuus "divisible," from dividere, → divide.

Takâl, from tak, → single, + suffix -âl, → -al; takâli with adj. suffix -i.

individual constant
  پایای ِ تکال   
pâyâ-ye takâl

Fr.: constant individuel   

In predicate logic: A → word or → expression that represents a → specific  → individual or → object. A single object can be denoted by multiple individual constants, reflecting the fact that objects can have multiple names. On the other hand, any individual constant can only denote one object. Individual constants are represented by lower case letters from the beginning of the alphabet: a, b, c.

individual; → constant.

individual variable
  ورتنده‌ی ِ تکال   
vartande-ye takâl

Fr.: variable individuel   

In → predicate logic, a variable which represents an unspecified → subject. Individual variables work just as do variables in algebra, they stand in for a value, but have no fixed value of their own. They are represented by lower case letters taken from the end of the alphabet x, y, z; and if additional variables are needed by u, v, w, as well.

individual; → variable.

individualism
  تکالگرایی   
takâlgerâyi

Fr.: individualisme   

1) A social theory advocating the liberty, rights, or independent action of the individual (Dictionary.com).
2) An individual peculiarity.

individual; → -ism.

individualist
  تکالگرا   
takâlgerâ

Fr.: individualiste   

1) A person who shows great independence or individuality in thought or action (Dictionary.com).
2) An advocate of → individualism (Dictionary.com).

individual; → -ist.

<< < -es -it -sc 201 951 abe abs abs aca acc acc aco act ada adh ado aer aft air Alf alg alk alp Alt alt amb ana And ang ani ann ant ant ant apo app app Apu arc arg Arn art ass ast ast ast atm ato att aur aut avo azi bac bal bar bar bat Bea Bel bet bia big bin bio Bir bla bla blo Blu bol Boo bou box bre Bri bro bur cal cal Can cap car Car cat cau cel cen cen cha Cha cha che Chi chr cir cir civ cla clo clo CMB coa coe coh col col col com com com com com com com com Com con con con con con con con con con con con con coo cor cor cor Cos cos cos cou cou cra cri cro cry cul cur cyc D l dar dat day dea dec dec dec def def deg Del Den dep der det deu dew dic dif dif dil dip dir dis dis dis dis dis diu dog Dop dou Dra Dsc dus dwa dyn Dys Ear ecc eco edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ eru eth Eur eve exa exc exe exi exo exp ext ext ext fab fai Fan fea fem fer fie fil fir fir fla fli flu foc for for for fra fre fre fri fun fuz gal gal gal Gam gau Gau gen geo geo geo geo Gib glo gov gra gra gra gra gre gro Gui H-a hal Ham har Hay hea hei hel Hel her het hie hig hoa hom hor hot Hub Hug hur hyd hyd hyl hyp ice ide ima ima imp imp inc inc ind ine inf inf inf ing inn ins ins int int int int int int int int inv inv ion iro Isl iso iso Jab jet Jov Jup Kar Kep kil Kip Kra Lag Lam Lan Lar las law lea Leg Leo lev lig lim lin lin lin lit loc loc log Lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal map mas mas mat Mau mea mea med Men mer Mes Met met mic mic Mie mil min Mir mix mod mol mom Moo mor mov mul mur n-b nan nat nea neg Ner neu new New NGC noc nom non non nor nor nuc nuc nul nut obj obl obs occ oct off old one ope opp opt opt orb ord org Ori osc oth ove Owl P-s Pal par par par par Pas pat pec pen per per per per per Pha pha pho pho pho phy pie pix Pla pla pla pla Pli Poi pol pol pol pol por pos pos pow pre pre pre pre pri pri pri pro pro pro pro pro pro pro pub pul pyc qua qua qua qua qui rad rad rad rad rad rad rai ran rar Ray rea Rea rec rec red red ref ref reg rel rel rel ren res res res res ret rev Ric rig rin roc roo rot rot rur S5- Sal sat sca sca Sch sci Scu sec sec sed sel sel sem seq set sha she sho sid sie sil sim sin sit sky slo sno sod sol sol sol sol son sou spa spa spe spe spe spe sph spi spo squ sta sta sta sta ste ste ste Sti sto str str sub sub sub sul sup sup sup sup sur sur syl syn sys tal Tay tel ten ter tex the the the the Tho thr tid tim Tit too Tor tra tra Tra tra Tra tri Tri tru tub tur two Typ ult ult unc uni uni uni upl ura uti val var vec vel ver Ver vie vir vis vis vol W-R war wav wav wea Wei wha wid win WN3 Wol wri xen yok zen zij > >>