An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

   Homepage   
   


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

<< < -ic ice ide ima imp imp inc ind ind ine inf inf inf ini ins ins int int int int int int int int inv ion iro irr iso iso ite > >>

Number of Results: 603
impostor
  دغلکار   
daqalkâr

Fr.: imposteur   

On who pretends to be what he is not.

M.Fr. imposteur, from L.L. impostor, agent noun from impostus, from imponere "to place upon, impose upon, deceive," from → in- "into, in, on, upon" + ponere "to put place," → position.

Daqalkâr, from daqal "imposture, deceit" + -kâr, agent noun suffix, from kardan, → -or.

imprecise
  ناپرسون   
nâparsun

Fr.: imprécis   

Not precise; not exact; vague.

From im-, variant of → in- + → precise.

imprecision
  ناپرسونش   
nâparsuneš

Fr.: imprécision   

The quality of lacking → precision.

From im-, variant of → in- + → precision.

impress
  درهاویدن   
darhâvidan

Fr.: imprimer; impressionner   

1) To press, to apply with pressure, especially to leave a mark.
2) To produce a profound effect upon the mind.

in-; → press.

impression
  درهاوش   
darhâveš

Fr.: impression   

1) A strong effect produced on the intellect, feelings, conscience, etc.
2) The first and immediate effect of an experience or perception upon the mind (dictionary.com).

press + -ion variant of → -tion.

impressionable
  درهاویدنی   
darhâvidani

Fr.: impressionnable   

Capable of being impressed; easily impressed.

impress; → -able.

impressionism
  درهاوشگرایی   
darhâvešgerâyi

Fr.: impressionisme   

1) A style of painting developed in the last third of the 19th century, characterized chiefly by short brush strokes of bright colors in immediate juxtaposition to represent the effect of light on objects.
2) A manner of painting in which the forms, colors, or tones of an object are lightly and rapidly indicated.
3) A manner of sculpture in which volumes are partially modeled and surfaces roughened to reflect light unevenly (Dictionary.com).

impression; → -ism.

impressive
  درهاونده   
darhâvandé

Fr.: impressionnant   

Having the power to impress, to raise admiration, awe, respect, etc.

impress; → -ive.

impulse
  تکانه   
tekâné (#)

Fr.: impulsion   

Of a force acting on a body, the → product of the → force and the → time for which it acts. If the force changes with time, the impulse is the → integral of the force with respect to the time during which the force acts, and is equal to the total change of → momentum produced by the force: ∫F dt = ∫m dv. Impulse is a → vector quantity.

From L. impulsus "a push against, pressure, shock," p.p. of impellere "to push, strike against, drive forward," from → in- "into" + pellere "to push, drive."

Tekâné, from tekân "involuntary motion, sudden shaking," related to tak "rush, quick motion, stroke, blow" (tâxtan, tâzidan "to run; to hasten; to assault"); Mid.Pers. tak "assault, attack;" Av. taka- "leap, run," from tak- "to run, flow;" cf. Skt. tak- "to rush, to hurry," takti "runs;" O.Ir. tech- "to flow;" Lith. teketi "to walk, to flow;" O.C.S. tešti "to walk, to hurry;" Tokharian B cake "river;" PIE base *tekw- "to run; to flow;" → flow.

impulse-momentum principle
  پروز ِ تکانه-جنباک   
parvaz-e tekâné-jonbâk

Fr.: principe impulsion-quantité de mouvement   

The vector → impulse of the → resultant force on a particle, in any time interval, is equal in magnitude and duration to the vector change in momentum of the particle: ∫F dt = mv2 - mv1. The impulse-momentum principle finds its chief application in connection with forces of short duration, such as those arising in collisions or explosions. Such forces are called → impulsive forces.

impulse; → momentum; → principle.

impulsive force
  نیروی ِ تکانه‌مند   
nitu-ye tekânemand

Fr.: force impulsionnelle   

Relating to → impulse, the force which is very large but acts for a very short time.

Impulsive, adj. of → impulse; → force.

impurity
  ناژاوی   
nâžâvi (#)

Fr.: impureté   

A substance that is incorporated into a semiconductor material to provide free electrons (n-type impurity) or holes (p-type impurity).

Impurity, from im- negation prefix, → in-, + purity, O.Fr. pureté, from L.L. puritatem (nom. puritas) "cleanness, pureness," from purus "clean;" cf. Av. pūitika- "serving for purification," Mod.Pers. pâk "clean;" Skt. pavi- "to become clean," pávate "purifies, cleanses;" O.H.G. fouwen, fewen "to sift;" PIE base *peu- "to purify, cleanse."

Nâžâvi "impurity," from nâ- negation prefix, → in-, + žâv "pure" + -i noun suffix.

in phase
  هم‌فاز   
hamfâz (#)

Fr.: en phase   

The condition which exists when two waves of the same frequency pass through their maximum and minimum values in a correlated or synchronized way.

in; → phase.

Hamfâz, from ham- "together," → com- + fâzphase.

in situ
  درجا   
dar jâ (#)

Fr.: in situ   

Situated in the natural or original position or place.

From L. in, → in-; L. situ, → site.

Dar "in," → in-; , → place.

in-
  ۱) در-؛ ۲) نا-، بی-، ان-، اَ-   
1) dar-; 2) nâ-, bi-, an-, a-

Fr.: en-   

1) Prefix meaning "into, in, on, upon, toward, at;" variants im-; il-; ir- by assimilation of -n- with the following consonant. It occurs also sometimes as en, in loans from O.Fr.
2) Prefix meaning "not, opposite of, without."

1) From L. in; cf. Gk. en; P.Gmc. *in (cf. O.Fris, Du., Ger., Goth. in); O.E. in, inne "within."
2) From L. in- "not," cognate with Gk. an-; O.Pers./Av. an-, a- "not, without;" Skt. an-, a- "not;" P.Gmc. *un-; O.E. un-.

1) Dar- "in," from Mid.Pers. andar, → intra-.
2) nâ-, na "not," ma- "not" (prohibitive); Mid.Pers. nê, ma "no, not;" O.Pers. naiy, nai "not;" Av. nôit, naē "not;" cf. Skt. "not;" L. ne-, in-, un-; Gk. ni; Lith. ; O.C.S. ne "not;" PIE *ne-.
bi- privative prefix, from Mid.Pers. abi-, O.Pers. *apaiy-, Av. apa-.
a-, an-, from O.Pers./Av. negation prefix appearing before consonants and vowels respectively. A couple of examples in Mod.Pers.: amordâd "immortality, name of the fifth month in the Iranian calendar," anušé; "fortunate, happy," anirani "non Iranian," âhu "vice, defect," âsoqdé "unburnt, half-burnt wood."

inaccuracy
  نارَشمندی   
nârašmandi

Fr.: imprécision, inexactitude   

The quality or condition of being inaccurate.
The difference between the input quantity applied to a measuring instrument and the output quantity indicated by that instrument. The inaccuracy of an instrument is equal to the sum of its instrument error and its uncertainty.

From negation prefix → in- + → accuracy

inactive
  ناژیرا   
nâžirâ

Fr.: inactif   

1) Not → active.
2) Chem.: Not → reactive.

in-; → active.

incandescence
  فروزندگی   
foruzandegi

Fr.: incandescence   

State of glowing at high → temperature; white or bright-red → heat.

Quality, state noun from → incandescent.

incandescent
  فروزنده   
foruzandé (#)

Fr.: incandescent   

1) (Of light) produced by → incandescence.
2) Glowing or → white with → heat.
3) Intensely → bright; brilliant (Dictionary.com).

From Fr., from L. incandescent-, incandescens, p.p. of incandescere "to become hot," from → in- + candescere "to become hot," from candere "to glow."

Foruzandé, agent noun and verbal adj. from foruzidan, → glow.

incandescent lamp
  لامپ ِ فروزنده   
lâmp-e foruzandé (#)

Fr.: lampe à incandescence   

Electric lamp in which light is produced by the heating effect of a → metal  → filament.

incandescent; → lamp.

<< < -ic ice ide ima imp imp inc ind ind ine inf inf inf ini ins ins int int int int int int int int inv ion iro irr iso iso ite > >>