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intrinsic variable 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. |
introduce andarhâxtan, andarhâzidan Fr.: introduire 1) To lead or bring in especially for the first time. 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 andarhâzeš Fr.: introduction 1) The act or process of introducing; the state of being introduced. |
intuition 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 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). |
intuitive dargasi Fr.: intuitif Known or perceived by → intuition. See also → intuitionism. |
invalid nâpâymand Fr.: invalide Logic: The quality of an argument when its conclusion is false even if all the premises are true. |
invalidity nâpâymandi Fr.: invalidité |
invariable plane 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. |
invariance 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 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 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 parâveš Fr.: invention The action or of inventing or something invented. Verbal noun of → invent. |
inventor parâvandé, parâvgar Fr.: inventeur A person who invents. |
inverse vârun (#) Fr.: inverse Opposite to or reversing something. From L. inversus, p.p. of invertere, → invert. Vârun "inverse, upside down," from vâ- "back, backward, again, re-," variant of bâz-, from Mid.Pers. abâz-, apâc-, O.Pers. apa- [pref.] "away, from;" Av. apa- [pref.] "away, from," apaš [adv.] "toward the back;" cf. Skt. ápāñc "situated behind." |
inverse axiom bondâšt-e vârun Fr.: axiome d'inverse A basic rule in → group theory stating that for any element a of a group there is an element a^{-1} such that a * a^{-1} = a^{-1} * a = e. |
inverse beta decay tabâhi-ye vârun-e β (#) Fr.: désintégration β inverse A collision of a proton with an electron that produces a neutron and an electron neutrino. See → beta decay. |
inverse bremsstrahlung legâm-tâbeš-e vârun Fr.: Bremsstrahlung inverse The absorption of a photon by an electron in a strong electric field. → bremsstrahlung. → inverse; → bremsstrahlung. |
inverse Compton effect oskar-e Compton-e vârun Fr.: effet Compton inverse A → scattering process by which fast-moving, energetic particles transfer energy to photons, decreasing the wavelength of the radiation. → inverse; → Compton effect. |
inverse P Cygni line profile farâpâl-e P Cygni-ye vârun Fr.: profil P Cygni inverse A line profile in which the emission is on the blue side of the absorption. It is usually interpreted as the redshift of the absorption component relative to emission lines, which necessitates infall of matter. |
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