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cube kâb Fr.: cube Geometry: The regular solid whose faces are six squares. From L. cubus, from Gk. kubos "a cube, a die; cavity before the hip," kubiton "elbow;" cf. Skt. kubra- "hole in the earth, pit;" Goth. hups "hip;" from PIE base *keu- "to bend." The currently used term in Pers. is moka'ab ( |
cube root riše-ye kâbi Fr.: racine cubique A number which taken three times as a factor produces another number, the cube of the given factor. |
cubic kâbi Fr.: cubique 1) Having the form of a cube; having three dimensions.
→ cubic crystal system. |
cubic crystal system râžmân-e boluri-ye kâbi Fr.: système cristallin cubique A → crystal system whose three axes have equal lengths and all corners are 90°. |
cubic equation hamugeš-e kâbi Fr.: équation cubique An equation containing unknowns of the third power; the general form: ax^{3} + bx^{2} + cx + d = 0. |
cubic function karyâ-ye kâbi Fr.: fonction cubique A function defined by a → polynomial of → degree three. Its generalized form is: f(x) = ax^{3} + bx^{2} + cx + d, where a, b, c and d are constants, and a≠ 0. |
culminate bâlestidan Fr.: culminer To reach the highest point above an observer's horizon; to attain → culmination. From L.L. culminatus, p.p. of culminare "to exalt," from L. culmen "top, summit," cf. Gk. kolonos "hill," Skt. kuta- "top," Mod.Pers. kotal "hill," Lith. kalmas "mountain," P.Gmc. *khulnis Low Ger. hull "hill," E. hill; PIE base *kel- "to be high; hill." Bâlestidan, verb from bâlest→ culmination. |
culmination bâlest Fr.: culmination The act of culminating or the instant at which a celestial object reaches its highest altitude above the horizon by crossing the observer's meridian. → upper culmination; → lower culmination. Verbal noun of → culminate. Bâlest, from Mid.Pers. bâlist "culmination point of a star; highest, summit," from bâlây "high" + -ist superlative suffix, Av. barəzišta- "highest," from barəz- "high, mount" (Skt. bhrant- "high," O.E. burg, burh "castle, fortified place," from P.Gmc. *burgs "fortress," Ger. Burg "castle," Goth. baurgs "city," E. burg, borough, Fr. bourgeois, bourgeoisie, faubourg; PIE base *bhergh- "high") + -išta- superlative suffix (Skt. -istha-, Gk. -istos, O.H.G. -isto, -osto, O.E. -st, -est, -ost). |
culture 1) farhang (#); 2) kešt (#) Fr.: culture 1a) Enlightenment and sophistication acquired by a person or society
through education, arts, letters, manners, and scholarly pursuits. M.E., from M.Fr. culture from L. cultura "cultivation, agriculture; care; honoring," from p.p. stem of colere "to till, cultivate; inhabit; maintain; cherish, honor;" PIE *k^{w}el- "to move around;" cf. Av. car- "to move, go, walk," carāni "I would go," carāt "he would go;" Mid.Pers. car- "to pasture, graze," carag "pasture, grazing; flock;" Mod.Pers. caridan "to graze;" Skt. car- "to move, go, walk;" Gk. pelomai "to move." 1) Farhang "culture, education; dictionary," related to farhixtan
"to educate," âhanjidan "to draw up;" Mid.Pers. frahang "education,
instruction; knowledge," frahixtan, frahanjidan "to educate;"
Av. fraθang- "to drive forward, to drive to," from
frā-, fra- "forward, forth," → pro-,
+ θang-, θanj- "to draw, to pull." |
cumulate kumidan Fr.: cumuler To heap up; → amass; → accumulate. From L. cumulatus "heaped, increased, augmented," p.p. of cumulare "to heap," from cumulus "mound, heap," from PIE *ku-m-olo-, from *keue- "to swell;" cf. Skt. śavi "to swell;" svayati "swells up, is strong;" Av. su-, sauu- "to bulge, swell up, increase;" Proto-Ir. *sauH- "to bulge, swell up, increase" (Cheung 2007, Pers. sud "gain, profit"); Gk. kuein "to swell;" Lith. saunas. Kumidan, from kum, kumé "heap;" Hamedâni kumelé, kumelân "heap, pile, mound," kumé kardan "to accumulate;" Kurd. kom "pile, group," komel "society, organization," related to Pers. kud "heap" (Mid.Pers. kôt), Gilaki kô-pâ "warehouse, barn," kô-gâh "gathering site." In the Gilan province there are several localities with protruding positions that bear names with an initial kom- (such as komâcâl, komâdol, kumélé, komsâr, etc.); probably related to L. cumul-, as above; if confirmed, interestingly it relates to the PIE form *keue- in contrast with Proto-Ir. *sauH-, as above. |
cumulative 1) kumandé; 2) kumeši Fr.: cumulatif 1) Increasing or growing by accumulation or successive additions. |
cumulative distribution function karyâ-ye vâbâžeš-e kumeši Fr.: fonction de distribution cumulée A function that gives the probability that a → random variable X is less than or equal to x, at each possible outcome: F(x) = P(X ≤ x), for -∞ < x < ∞. Same as → distribution function. → cumulative; → distribution; → function. |
Cupid Kupid (#) Fr.: Cupid A natural satellite of Uranus discovered in 2003 (Uranus XXVII); mean diameter about 18 km, orbital semi-major axis about 74 km. Discovered in 2003 using the Hubble Space Telescope. Named after a character in William Shakespeare's play Timon of Athens. |
Cupido Kupido Fr.: Cupidon Asteroid 763 Cupido, which belongs to the Main Belt. Cupido "desire," the Roman god of love (also known as Amor), often equated with Eros, one of the primordial gods in Greek mythology. |
curie curie (#) Fr.: curie The traditional unit of → radioactivity defined as the quantity of any radioactive isotope in which the number of → disintegrations per second is 3.7 × 10^{10}. Abbreviation: Ci. → becquerel. Named after the French physicists Pierre Curie (1859-1906) and his wife Marie Curie (1867-1934, née Maria Skłodowska), pioneers of research on radioactivity, who discovered → radium in 1898 and received the Nobel Prize in Physics, 1903, jointly with Henri Becquerel (1852-1908). |
Curie temperature damâ-ye Curie (#) Fr.: température de Curie The highest temperature for a given → ferromagnetic substance above which the → magnetization is lost and the substance becomes merely → paramagnetic. The Curie temperature of iron is about 1043 K and that of nickel 631 K. Named after the French physicist Pierre Curie (1859-1906), a pioneer in magnetism, crystallography, and radioactivity. In 1903 he received the Nobel Prize in Physics with his wife Marie Curie (1867-1934, née Maria Skłodowska), and Henri Becquerel (1852-1908); → temperature. |
curium kuriom (#) Fr.: curium A → radioactive element not found in nature but discovered in 1944 among the products of → plutonium-239 after bombardment by high-energy → alpha particles in a cyclotron at the University of California at Berkeley; symbol Cm. Atomic number 96; mass number of most stable isotope 247; melting point about 1,340°C; boiling point 3,110°C. Named after French physicists Pierre Curie (1859-1906) and his wife Marie Curie (1867-1934, née Maria Skłodowska). |
curl tâv (#) Fr.: rotationnel A vector → operator which is the vector product of the → del operator with a vector function. For a three-dimensional function, it is equal to the sum of the vector products of the unit vectors and → partial derivatives in each of the component directions: ∇ x F(x,y,z) = (∂F_{z}/∂y - ∂F_{y}/∂z)i + (∂F_{x}/∂z - ∂F_{z}/∂x)j + (∂F_{y}/∂x - ∂F_{x}/∂y)k. The curl of a vector field is a vector field. ∇ x F is sometimes called the rotation of F and written rot F. Metathesis of crulle "curly," probably from an unrecorded O.E. word or from M.Du. krul "curly." Tâv, variants tow, tâb "twist, swing," from tâbidan "to spin, to twist." |
current jarayân (#) Fr.: courant Any steady movement of material in space. In particular, any movement of electric charge. → stream; → flow; → flux. From O.Fr. corant "running," pr.p. of courre "to run," from L. currere "to run," from PIE *kers- "to run" (cf. Gk. -khouros "running," Lith. karsiu "go quickly," O.N. horskr "swift," Welsh carrog "torrent"). Jarayân from Ar. |
current cosmological epoch zime-ye keyhânšenâxti-ye konuni Fr.: époque cosmologique actuelle The → Universe at the → redshift z = 0. → current; → cosmological; → epoch. |
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