An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 13176 Search : in
real
  هسیا   
hasyâ

Fr.: réel   

1) General: Having actual physical existence; genuine, not artificial.
2) Math.: Involving, relating to, or having elements of the set of rational or irrational numbers only.
3) Philo.: Existent or pertaining to the existent as opposed to the nonexistent; actual as opposed to possible or potential.
See also:
real dynamical variable, → real equator, → real equinox, → real fluid, → real gas, → real image, → real number, → real object, → real-time operation, → real-time processing, → realism, → realist, → realistic, → reality, → true.

M.E., from O.Fr. reel, from L.L. realis "relating to things; actual," from L. res "matter, thing," of unknown origin.

Hasyâ, from O.Pers. hašya- "true, real;" Av. haiθa- "true, real;" cf. Khotanese hiththo "true, real;" Ossetic aecaeg "true, real, genuine;" Skt. satyá- "true, real, genuine;" PIE base *es- "to be" (Mod.Pers. hastan, astan "to be;" O.Pers./Av. ah-, Skt. as-).

real dynamical variable
  ورتنده‌ی ِ توانیک ِ هسیا   
vartande-ye tavânik-e hasyâ

Fr.: variable dynamique réel   

A → dynamical variable which does not have an → imaginary number part.

real; → dynamical; → variable.

real equator
  هموگار ِ هسیا   
hamugâr-e hasyâ

Fr.: équateur vrai   

Same as → true celestial equator.

real; → equator.

real equinox
  هموگان ِ هسیا   
hamugâr-e hasyâ

Fr.: équinoxe vrai   

Same as → true equinox.

real; → equinox.

real fluid
  شاره‌ی ِ هسیا   
šârre-ye hasyâ

Fr.: fluide réel   

The opposite of an ideal fluid; a fluid which possesses viscosity and therefore exhibits certain frictional phenomena. Viscosity arises due to cohesive forces between molecules and molecular momentum exchange between fluid layers. These effects appear as tangential or shear stresses between moving fluid layers.

real; → fluid.

real gas
  گاز ِ هسیا   
gâz-e hasyâ

Fr.: gaz réel   

Actual gas whose molecules do not necessarily possess the properties assigned to those of an → ideal gas.

real; → gas.

real image
  وینه‌ی ِ هسیا، تصویر ِ ~   
vine-ye hasyâ, tasvir-e ~

Fr.: image réelle   

In an optical system, the image of an object produced by the convergence of the light rays that make up the image. → virtual image; → real object.

real; → image.

real number
  عدد ِ هسیا   
adad-e hasyâ

Fr.: nombre réel   

A number that can be represented by a point on a line. The set of real numbers includes all rational and irrational numbers, but not the imaginary numbers.

real; → number.

real object
  بر‌آخت ِ هسیا   
baâxt-e hasyâ

Fr.: objet réel   

In an optical system, a collection of points which actually serves as a source of light rays.

real; → object.

real-time operation
  آپارش در زمان ِ هسیا   
âpâreš dar zamân-e hasyâ

Fr.: opération en temps réel   

The operation of a computer during the actual time that the related physical processes take place so that the results can be used to guide the physical processes.

real; → time; → operation.

real-time processing
  آمایش در زمان ِ هسیا   
âmâyeš dar zamân-e hasyâ

Fr.: traitement en temps réel   

Data processing that takes place instantaneously upon data entry or receipt of a command.

real; → time; → processing.

realism
  هسیاگرایی؛ هسیاباوری   
hasyâgerâyi; hasyâbâvari

Fr.: réalisme   

1) An inclination or concern for the actual or real, as distinguished from the abstract or speculative.
2) Philo.: The doctrine that material objects exist independently of our perception of them.
3) Art, literature: The attempt to describe the objects or social conditions as they actually are, without idealization or presentation in abstract form.

real; → -ism.

realist
  ۱) هسیاگرا، هسیاباور؛ ۲) هسیامند   
1) hasyâgerâ, hasyâbâvar; 2) hasyâmand

Fr.: réaliste   

1) A person who tends to view or represent things as they really are; an adherent of → realism.
2) Of or pertaining to realism or to a person who embodies its principles or practices.

real; → -ist.

realistic
  هسیامند   
hasyâmand

Fr.: réaliste   

1) Interested in, concerned with, or based on what is real or practical.
2) Philo.: Of or pertaining to realists or → realism.

From → real + -istic, from L. -isticus, Gk. -istikos, from -ikos, → -ic.

reality
  هسیایی   
hasyâi

Fr.: réalité   

1) The state or quality of being real. A real thing or fact.
2) Philo.: The totality of what is, as opposed to what merely seems to be.

real + → -ity.

really
  هسیانه   
hasyâné

Fr.: vraiment   

In reality; actually; indeed.

real; → -ly.

reason
  ۱؛ ۲؛ ۳) راین؛ ۳) خرد؛ ۴) راینیدن   
1; 2; 3) râyan; 3) xerad; 4) râyanidan

Fr.: raison   

1) A basis or cause, as for some belief, action, fact, event, etc.
2) A statement presented in justification or explanation of a belief or action.
3) The mental powers concerned with forming conclusions, judgments, or → inferences especially in orderly rational ways.
Philo.: The intellectual ability to apprehend the truth cognitively, either immediately in intuition, or by means of a process of inference. See also → wisdom.
4) (v.) To think or argue in a logical manner; to form conclusions, judgments, or inferences from facts or premises.

M.E. resoun, reisun (n.), from O.Fr. reisun, reson, raison, from L. rationem (nom. ratio) "reckoning, understanding, motive, cause," from ratus, p.p. of reor, reri "to reckon, think;" cognate with Pers. râ, rây "reason," as below; O.C.S. raditi "to take thought, attend to," O.Ir. im-radim "to deliberate, consider."

Râyan, from rây + -an. The first component rây, râ "because of, by reason of," in barây-e "because of," cerâ "for what reason, why?," irâ "for this reason, therefore," zirâ "because, on account of;" also rây "opinion, consult;" râymand "reasonable, wise;" râyzan "a person whom one consults; wise;" Mid.Pers. râd, rây "because of, for the sake of, on behalf of;" O.Pers. "reason, cause," in rādiy "for this reason;" Av. rādah- "generosity, care, generous," rāsta- "to do right, to fit;" cf. Skt. rādh- "to succeed, be successful;" Gk. arithmos "number, amount;" L. ratio, as above; PIE base *rē-, *rə-. The second component -an a suffix as in rowzan, rowšan, suzan, rasan, zaqan, hâvan, etc.

reasonable
  راین‌پذیر   
râyanpazir

Fr.: raisonable   

Being in accordance with reason.

reason; → -able.

reasoning
  راینش   
râyaneš

Fr.: raisonnement   

A process of thinking involving → inference, or of solving problems by employing general principles.

Verbal noun of → reason.

Réaumur scale
  مرپل ِ ریءومور   
marpel-e Réaumur

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.

<< < -es -it -sc 201 951 abe abs abs aca acc acc aco act ada adh ado aer aft air Alf alg alk alp Alt alt amb ana And ang ani ann ant ant ant apo app app Apu arc arg Arn art ass ast ast ast atm ato att aur aut avo azi bac bal bar bar bat Bea Bel bet bia big bin bio Bir bla bla blo Blu bol Boo bou box bre Bri bro bur cal cal Can cap car Car cat cau cel cen cen cha Cha cha che Chi chr cir cir civ cla clo clo CMB coa coe coh col col col com com com com com com com com Com con con con con con con con con con con con con coo cor cor cor Cos cos cos cou cou cra cri cro cry cul cur cyc D l dar dat day dea dec dec dec def def deg Del Den dep der det deu dew dic dif dif dil dip dir dis dis dis dis dis diu dog Dop dou Dra Dsc dus dwa dyn Dys Ear ecc eco edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ eru eth Eur eve exa exc exe exi exo exp ext ext ext fab fai Fan fea fem fer fie fil fir fir fla fli flu foc for for for fra fre fre fri fun fuz gal gal gal Gam gau Gau gen geo geo geo geo Gib glo gov gra gra gra gra gre gro Gui H-a hal Ham har Hay hea hei hel Hel her het hie hig hoa hom hor hot Hub Hug hur hyd hyd hyl hyp ice ide ima ima imp imp inc inc ind ine inf inf inf ing inn ins ins int int int int int int int int inv inv ion iro Isl iso iso Jab jet Jov Jup Kar Kep kil Kip Kra Lag Lam Lan Lar las law lea Leg Leo lev lig lim lin lin lin lit loc loc log Lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal map mas mas mat Mau mea mea med Men mer Mes Met met mic mic Mie mil min Mir mix mod mol mom Moo mor mov mul mur n-b nan nat nea neg Ner neu new New NGC noc nom non non nor nor nuc nuc nul nut obj obl obs occ oct off old one ope opp opt opt orb ord org Ori osc oth ove Owl P-s Pal par par par par Pas pat pec pen per per per per per Pha pha pho pho pho phy pie pix Pla pla pla pla Pli Poi pol pol pol pol por pos pos pow pre pre pre pre pri pri pri pro pro pro pro pro pro pro pub pul pyc qua qua qua qua qui rad rad rad rad rad rad rai ran rar Ray rea Rea rec rec red red ref ref reg rel rel rel ren res res res res ret rev Ric rig rin roc roo rot rot rur S5- Sal sat sca sca Sch sci Scu sec sec sed sel sel sem seq set sha she sho sid sie sil sim sin sit sky slo sno sod sol sol sol sol son sou spa spa spe spe spe spe sph spi spo squ sta sta sta sta ste ste ste Sti sto str str sub sub sub sul sup sup sup sup sur sur syl syn sys tal Tay tel ten ter tex the the the the Tho thr tid tim Tit too Tor tra tra Tra tra Tra tri Tri tru tub tur two Typ ult ult unc uni uni uni upl ura uti val var vec vel ver Ver vie vir vis vis vol W-R war wav wav wea Wei wha wid win WN3 Wol wri xen yok zen zij > >>