A process of thinking involving → inference, or of solving problems by employing general principles.
Verbal noun of → reason.
Fr.: échelle Réaumur
A temperature scale in which the → freezing point and the → boiling point of → water are set to 0 and 80 degrees respectively. See also → Celsius scale, → Fahrenheit scale, → Kelvin scale, → Rankine scale.
Named after René Antoine Ferchault de Réaumur (1683-1757), who first proposed it in 1730; → scale.
1) vâjahidan; 2) vâjast
Fr.: 1) rebondir; 2) rebond
1) To bound or spring back from force of impact.
M.E., from O.Fr. rebondir "leap back, resound; push back," from → re- "back" + bondir "to leap, bound."
kahkašân-e dur šavandé
Fr.: galaxie qui s'éloigne
A galaxy whose distance increases from other galaxies due to the global expansion of the Universe.
Kahkašân, → galaxy; dur šavandé "receding," from dur, → far, + šavandé agent noun of šodan "to go, to pass; to become, to be, to be doing;" Mid.Pers. šudan, šaw- "to go;" Av. š(ii)auu-, šiyav- "to move, go," šiyavati "goes," šyaoθna- "activity; action; doing, working;" O.Pers. šiyav- "to go forth, set," ašiyavam "I set forth;" cf. Skt. cyu- "to move to and fro, shake about; to stir," cyávate "stirs himself, goes;" Gk. kinein "to move;" Goth. haitan "call, be called;" O.E. hatan "command, call;" PIE base *kei- "to move to and fro."
An electronic device that amplifies, detects, and gives a measure of the intensity of radio signals.
M.E. receven, from O.Fr. recoivre, from L. recipere from → re- + -cipere, combining form of capere "to take, hold, seize," PIE base *kap- "to grasp" (cf. Skt. kapati "two handfuls," Gk. kaptein "to swallow," O.Ir. cacht "servant-girl," lit. "captive," Goth. haban "have, hold," O.E. habban "to have, hold," probably Mod.Pers. qâp-, qâpidan, kapidan "to seize, rob," Av. haf-, hap- "to keep, observe").
Girandé, agent noun of gereftan "to take, seize, hold;" Mid.Pers. griftan, gir- "to take, hold, restrain;" O.Pers./Av. grab- "to take, seize," cf. Skt. grah-, grabh- "to seize, take," graha- "seizing, holding, perceiving," M.L.G. grabben "to grab," from P.Gmc. *grab, E. grab "to take or grasp suddenly;" PIE *ghrebh- "to seize."
Fr.: bruit de récepteur
The unwanted signal affecting a receiver.
1) Of, belonging to, or occurring at a time immediately before the present.
From L. recentem (nominative recens) "fresh, new, young," from → re- + PIE root *ken- "fresh, new, young;" cf. Av. kainika-, kanya- "young girl;" Mod.Pers. kaniz(ak) "maid, virigin, girl; a female slave;" Mid.Pers. kanig, kanizag "girl, maid;" Gk. kainos "new;" Skt. kanina- "young;" Old Irish cetu- "first;" O.C.S. koni "beginning."
Tarné, from Tabari tarné "fresh, new, young, recent" (tarné mâr "fresh mother," i.e. "animal that has just given birth," tarné guk "recently born calf"), related to Pers. tar "fresh, young; wet," tarké "sprout;" Mid.Pers. tarr "fresh, moist;" Proto-Ir. *tarna-; cf. Av. tauruna- "young, fresh; young boy, lad;" Skt. táruna- "young, fresh;" Gk. teren "delicate, weak."
In the recent past.
→ recent + -ly a suffix forming adverbs from adjectives.
Fr.: 1) caractère récent; 2) époque récente
1) The property of having happened or appeared not long ago.
Fr.: éloignement, récession
1) The act of receding, going back, or withdrawing.
From Fr. récession "a going backward, a withdrawing," from L. recessionem "a going back," noun of action from p.p. stem of recedere "to go back, fall back; withdraw, retire," from → re- "back" + cedere "to go," → process.
tondâ-ye dur šodan
Fr.: vitesse d'éloignement
The velocity with which an object moves away from another object or a reference point.
Fr.: théorème de réciprocité
1) General: Any theorem that expresses various reciprocal relations for the
behavior of some physical systems, in which input and output can be
interchanged without altering the response of the system to a given
An act of recognizing or the state of being recognized.
Verbal noun of → recognize.
1) To identify as something or someone previously seen, known, etc.
1) paszadan; 2) paszani
Fr.: 1) reculer; 2) recul
1) To draw back; to rebound or fly back.
M.E. recoilen, reculen, from O.Fr. reculer "to go back, recede, retreat," from V.L. *reculare, from L. → re- "back" + culus "backside."
Paszadan, from pas-, → back-, + zadan "to strike, beat, dash against," from Mid.Pers. zatan, žatan, O.Pers./Av. jan-, gan- "to strike, hit, smite, kill" (jantar- "smiter"), Skt. han- "to strike, beat" (hantar- "smiter, killer"), cf. Gk. theinein "to strike," L. fendere "to strike, push," Gmc *gundjo "war, battle;" PIE *gwhen- "to strike, kill."
1) The process or result of combining again.
Verbal noun of → recombine.
Fr.: coefficient de recombinaison
A measure of the specific rate at which oppositely charged ions join to form neutral particles. It is given by the rate at which those ions recombine, divided by the product of the densities of the two species involved.
Fr.: continuum de recombinaison
A recombination radiation that is continuous over a range of frequencies. Same as → continuum emission.
Fr.: époque de recombinaison
Same as → recombination era.
Fr.: ère de recombinaison
The era some 380,000 years after the → Big Bang (at a → redshift of about 1,100), when the Universe had cooled sufficiently so that protons and electrons combined to form → neutral hydrogen in a process called → recombination. The temperature was about 3,000 K and the ionization fraction low enough for Universe to become transparent to light. Consequently matter and radiation decouple from one another because no further → scattering of the radiation occurs. The observation of the → cosmic microwave background radiation provides a means of studying the Universe at the recombination era. Also called recombination epoch and → decoupling era.