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: 608
intramercurial planet
  سیاره‌ی ِ فروتیری   
sayyâre-ye forutiri

Fr.: planète intramercurienne   

A hypothetical planet, named Vulcan, that once was believed to exist between the Sun and Mercury.

intra-; → Mercury; → planet.

intramolecular forces
  نیروها‌ی ِ درون‌ملکولی   
niruh-ye darunmolekuli

Fr.: intramoléculaire   

Within the molecule; occurring by a reaction between different parts of the same molecule.

intra-; → molecular.

intrinsic
  درونگین   
darungin

Fr.: intrinsèque   

Belonging to a thing by its very nature; true; not affected by external factors; → intrinsic brightness. Opposite to extrinsic.

Intrinsic, from M.Fr. intrinsèque "inner," from M.L. intrinsecus "interior, internal," from L. intrinsecus (adv.) "inwardly, on the inside," from intra "within" + secus "alongside," originally "following" (related to sequi "to follow").

Darungin, from darun "in, into; within" (Mid.Pers. andarôn "inside," from andar, → inter-, + rôn "side, direction;" Av. ravan- "(course of a) river") + -gin adj. suffix, contraction of âgin "filled."

intrinsic brightness
  درخشندگی ِ درونگین   
deraxšandegi-ye darungin

Fr.: brillance intrinsèque   

The brightness of an object, such as a star, that is not affected by interstellar absorption and independent of distance.

intrinsic; → brightness.

intrinsic color
  رنگ ِ درونگین   
rang-e darungin

Fr.: couleur intrinsèque   

A → color not affected by → extinction.

intrinsic; → color.

intrinsic luminosity
  تابندگی ِ درونگین   
tâbandegi-ye darungin

Fr.: luminosité intrinsèque   

The energy per second emitted by an astronomical object.

intrinsic; → luminosity.

intrinsic semiconductor
  نیم‌هازا‌ی ِ درونگین   
nimhâzâ-ye darungin ~

Fr.: semiconducteur intrinsèque   

A pure semiconductor containing no → impurity atoms. → extrinsic semiconductor.

intrinsic; → semiconductor.

intrinsic variable
  ورتنده‌ی ِ درونگین   
vartande-ye darungin

Fr.: variable intrinsèque   

A variable star whose fluctuations in brightness are due to natural changes in the luminosity of the star itself, not by external causes, such as in → extrinsic variable stars.

intrinsic; → variable.

introduce
  اندرهاختن، اندرهازش   
andarhâxtan, andarhâzidan

Fr.: introduire   

1) To lead or bring in especially for the first time.
2) To bring into practice or use.
3) To present or announce formally or officially or by an official reading (Merriam-Webster.com).

M.E., from L. introducere "to lead inside, to bring in," from intro- "on the inside, within, to the inside," → inter-, + ducere "to lead," → conduct.

Andarhâxtan, andarhâzidan, from andar- "in, into, between," → inter-, + hâxtan, hâzidan "to lead, guide," → conduct.

introduction
  اندرهازش   
andarhâzeš

Fr.: introduction   

1) The act or process of introducing; the state of being introduced.
2) A part of a book or treatise preliminary to the main portion; a preliminary treatise or course of study (Merriam-Webster.com).

Verbal noun of → introduce; → -tion.

intuition
  درگس   
dargas

Fr.: intuition   

The immediate apprehension of knowledge through the use of the senses, without conscious reasoning or analysis. → intuitive, → intuitionism.

M.E., from L.L. intuitionem "a looking at, consideration," noun of action from p.p. stem of intueri "look at, consider," from → in- "at, on" + tueri "to look at, watch over."

Dargas, literally "looking at, consider," from dar-, → in-, + *gas "to look, appear;" cf. Parthian âgas "visible, apparent," pargas- "to observe, take care," related to negâh "look, attention," âgâh "aware, knowing;" Sogd. pcks- "to expect;" Proto-Ir. *kas- "to look, appear" (Cheung 2007).

intuitionism
  درگس‌باوری   
dargas-bâvari

Fr.: intuitionnisme   

A → philosophy of → mathematics that was introduced by the Dutch mathematician L.E.J. Brouwer (1881-1966). Intuitionism is based on the idea that mathematics is a creation of the mind. The truth of a mathematical statement can only be conceived via a mental construction that proves it to be true, and the communication between mathematicians only serves as a means to create the same mental process in different minds (Stanford Encyclopedia of Philosophy).

intuition; → -ism.

intuitive
  درگسی   
dargasi

Fr.: intuitif   

Known or perceived by → intuition. See also → intuitionism.

intuition; → -ive.

invalid
  ناپای‌مند   
nâpâymand

Fr.: invalide   

Logic: The quality of an argument when its conclusion is false even if all the premises are true.

in-; → valid.

invalidity
  ناپای‌مندی   
nâpâymandi

Fr.: invalidité   

invalid; → -ity.

invariable plane
  هامُن ِ ناورتنده   
hâmon-e nâvartandé

Fr.: plan invariable   

Mechanics: For a rotating rigid body not subject to external torque, a plane which is perpendicular to the angular momentum vector of the body, and which is always tangent to its → inertia ellipsoid.

Invariable negation of → variable; → plane.

invariance
  ناورتایی   
nâvartâyi

Fr.: invariance   

Any property of a physical law or quantity that is unchanged after the application of certain classes of transformations.

Invariance; noun of → invariant.

invariant
  ناورتا   
nâvartâ

Fr.: invariant   

A quantity which is independent of the coordinate system. For example the vector product of two vectors is an invariant since it depends only on the magnitude of the two vectors and the angle between them.

From negation prefix → in- + variant, from L. variantem (nom. varians), pr.p. of variare "to change," from varius "varied, different, spotted."

Nâvartâ, from negation prefix nâ-, → in-, + vartâ adj., from vartidan, variant of gardidan, gaštan "to change; to turn," Mid.Pers. vartitan; Av. varət- "to turn, revolve;" cf. Skt. vrt- "to turn, roll," vartate "it turns round, rolls;" L. vertere "to turn;" O.H.G. werden "to become;" PIE base *wer- "to turn, bend."

invent
  پراویدن   
parâvidan

Fr.: inventer   

To create or design a new type of thing (process, machines, etc.). See also → discover.

From L. inventus, p.p. of invenire "to encounter, come upon, find," from in- "upon" + ven-, from venire "to come" + -tus p.p. suffix.

Parâvidan on the model of dialectals Munji purôv-/purvi-, Yidgha pura-/prvei- "to find, obtain," Shughni, Roshani, Bartangi, Yazghulami firâp-fiript "to arrive at, reach;" prefixed (*fra-/*pra-) from Proto-Iranian *Hap/f- "to reach, attain;" cf. Av. ap- "to reach, attain;" related to Pers. yâb-, yâftan "to find" (Cheung 2007).

invention
  پراوش   
parâveš

Fr.: invention   

The action or of inventing or something invented.

Verbal noun of → invent.

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