# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 174
 universal gas constant   پایای ِ هرگانی ِ گاز‌ها   pâyâ-ye hargâni-ye gâzhâFr.: constante universelle des gaz   Same as → gas constant.→ universal; → gas; → constant. universal IMF    IMF ِ هرگانی   IMF-e hargâniFr.: IMF universelle   Same as → canonical IMF. universal quantifier   چنداگر ِ هروین   candigâr-e harvinFr.: quantificateur universel   A symbol of → predicate logic which expresses that the statements within its scope are → true for everything, or every instance of a specific thing. The symbol ∀ "for all" is used as the universal quantifier. Universal quantifiers are normally used in logic in conjunction with predicate symbols, which say something about a variable or constant, in this case the variable being quantified.→ universal; → quantifier. Universal Time (UT)   زمان ِ جهانی   zamân-e jahâniFr.: temps universel   A measure of time that conforms, within a close approximation, to the mean diurnal motion of the Sun and serves as the basis off all civil timekeeping. The local civil time for a position on the Greenwich meridian.→ universal; → time. Universal Time Coordinated   زمان ِ جهانی ِ همرایانیده   zamân-e jahâni-ye hamrâyânidéFr.: temps universel coordonné   Sale as → Coordinated Universal Time (UTC). universality   هرگانیگی   hargânigiFr.: universalité   The character or state of being universal.→ universal; → -ity. universality of free fall   هرگانیگی ِ افت ِ آزاد   hargânigi-ye oft-e âzâdFr.: universlité de chute libre   Same as → weak equivalence principle.→ universality; → free; → fall. universality of the IMF   هرگانی ِ کریای ِ آغازین ِ جرم   hargâni-ye karyâ-ye âqâzin-e jermFr.: universalité de l'IMF   The hypothesis whereby there exists a universal parent → distribution function which describes the stellar → initial mass function in individual star forming events. A consensus appears to have emerged in the community that the stellar IMF is largely invariant for star formation conditions as are found throughout the Local Group of galaxies at the present time. For details and discussion see Pavel Kroupa (2012), Recent advances on IMF research, arXiv.org/abs/astro-ph/1210.1211, and references therein. universe   ۱) گیتی؛ ۲) هرگان   1) giti (#); 2) hargânFr.: univers   1) The totality of all matter and energy that exists in the vastness of cosmos whether known to human beings or not. Related concepts: → world, → cosmos, → multiverse. 2a) Math.: A → set made of → subsets that contains all the elements relevant to a particular discussion or problem. 2b) Statistics: The entire population under study. See also: → all, → general, → omni-, → public, → total.M.E., from O.Fr. univers, from L. universum "the universe," noun use of neuter of adj. universus "all together," literally "turned into one," from unus, → one, + versus, p.p. of vertere "to turn," akin to Pers. gar-, gardidan "to turn, to change" (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").1) Giti "world, material world, time," variants jahân, keyhân, geyhân "world;" Mid.Pers. gêhân "world," gêtig "the material world; wordly;" Av. gaēθā- "being, world, matter, mankind," gaya- "life, manner of living", root gay- "to live" (present tense jiva-), O.Pers. gaiθā- "live-stock," cognate with Skt. jīv- "to live," jīva- "alive, living;" Gk. bios "life," L. vivus "living, alive," vita "life;" PIE base *gwei- "to live" (cf. O.E. cwic "alive;" O.C.S. zivo "to live;" Lith. gyvas "living, alive;" O.Ir. bethu "life," bith "age;" Welsh byd "world"). The Pers. words zistan "to live," zendé "alive," zendegi "life," and jân "vital spirit, soul; mind" belong to this family. 2) Hargân, from har "every, all, each," → holo-, + -gân suffix forming plural entities, from Mid.Pers. -gânag, -gâna, on the model of hamegân, → public. university   دانشگاه   dânešgâh (#)Fr.: université   An institution of higher education composed of several faculties for teaching and research and authorized to grant academic degrees.M.E., from O.Fr. universitei, from M.L. universitatem (nominative. universitas), in L.L. "corporation, society," from L., "the whole, aggregate," from universus "whole, entire," → universe.Dânešgâh, from dâneš, → science, + -gâh "place; time" (Mid.Pers. gâh, gâs "time;" O.Pers. gāθu-; Av. gātav-, gātu- "place, throne, spot;" cf. Skt. gâtu- "going, motion; free space for moving; place of abode;" PIE *gwem- "to go, come"). univocal   یکواز   yekvâzFr.: univoque   1) Having one meaning only. 2) A word or term that has only one meaningL.L. univocus, from L. → uni- + voc-, vox, → voice. "voice," univocity   یکوازی   yekvâziFr.: monosémie   The character of being → univocal. Same as → monosemy.→ univocal; → ity. unknown   نادانست   nâdânestFr.: inconnu   Math.: A → variable or → function whose → value is to be found.→ un-, + known, p.p. of → know. unordinary   ناشونیک   nâšunikFr.: non ordinaire   Uncommon, unusual. → extraordinary.→ un-; → ordinary. unpolarized light   نور ِ ناقطبیده   nur-e nâqotbidé (#)Fr.: lumière non polarisée   A light whose electric vector of vibration is randomly oriented. Light is an → electromagnetic wave possessing an electric vector and an associated orthogonal magnetic vector. Both vectors are → transverse to the axis of propagation. In unpolarized light the electric and magnetic vibrations occur in all possible planes. Ordinary light emitted by the Sun, by a living room lamp, or by a candle flame is unpolarized light. → polarization.→ un-; → polarized light. unqualified   ناچوناییده، ناچونامند   nâcunâyid, nâcunâmandFr.: non qualifié   Not qualified; not fit; lacking requisite qualifications (Dictionary.com).→ un-; → qualified. unreddened star   ستاره‌ی ِ ناسرخیده   setâre-ye nâsorxidéFr.: étoile non rougie   A star whose light is not affected by→ interstellar absorption. → reddening→ un-; → reddened star. unresolved   ناواگشوده   nâvâgošudéFr.: non résolu   Describing an image whose constituent or elementary parts are not resolved. → unresolved source.→ un- + → resolved. unresolved source   خن ِ ناواگشوده   xan-e nâvâgošudéFr.: source non résolue   A source of radiation whose angular size is too small for details of its structure to be revealed.→ unresolved; → source. unsharp image   تصویر ِ ناتیگ   tasvir-e nâtigFr.: image floue   An image in which finer details are not visible. → blurred image→ un-; → sharp image.