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: 13116 Search : far
ascension
  فرازش   
farâzeš

Fr.: ascension   

The act of ascending; ascent.

Verbal noun of → ascend; → -tion.

ASCII
  اسکی   
ASCII

Fr.: ASCII   

A standard code or protocol for displaying → characters as numbers. Each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s). 128 possible characters are defined. For example, the ASCII code for uppercase C is 67 and for lowercase c is 99. Most computers use ASCII codes to represent text, which makes it possible to transfer data from one computer to another.

Short for American Standard Code for Information Interchange.

ash
  خاکستر   
xâkestar (#)

Fr.: cendre   

The powdery residue that remains after something is burnt. → ashen light.

M.E. a(i)sshe; O.E. asce, æsce; cf. Frisian esk, Dutch asch, O.N., O.H.G. aska, Ger. Asche; akin to Gk. azein "to dry up, parch," L. arere "be dry," → arid, Skt. asa- "ashes," PIE root *as- "to burn, glow."

Xâkestar, ultimately from Proto-Iranian *aika-âtar- literally "fire dust," from *aika- (Pers. xâk "dust, earth," → soil) + *ātar- (Pers. âzar, âtaš, → fire); cf. Malâyeri xâkesar, Qasrâni xâksar.

ashen light
  نور ِ خاکستری   
nur-e xâkestari (#)

Fr.: lumière cendrée   

The faint glow occasionally observed on the unlit area of Venus in its crescent phase. Its cause is not known with certainty, but it might result from bombardment of atmospheric atoms and molecules by energetic particles and radiation, as with terrestrial airglow.

ash; → light.

Asia
  آسیا   
Âsiyâ (#)

Fr.: Asie   

The largest of the world's continents (about 41,440,000 sq. km.), bounded by Europe and the Arctic, Pacific, and Indian oceans.

From L. Asia, from Gk. Asia, apparently first used by Herodotus (about 440 BC) in reference to Anatolia or to the Persian Empire, in contrast to Greece and Egypt. Of uncertain origin.

aspect
  نمود   
nemud (#)

Fr.: aspect   

The apparent position of a body in the Solar System relative to the Sun, as seen from Earth. The main aspects are conjunction, greatest elongation, opposition, and quadrature.

Aspect from L. aspectus "looking, view, appearance," p.p. of aspicere "to look at," from ad- "to" + specere "to look," cognate with Gk. skeptesthai "to examine, consider," Av. spas- "to watch, look," Skt. spaz "to see, behold, look at;" PIE *spek- "to observe, look".

Nemud from nemudan "to show, demonstrate, exhibit, appear"

Aspect experiment
  آزمایش ِ اسپه   
âzmâyeš-e Aspect

Fr.: expérience d'Aspect   

A series of experiments carried out in the early 1980s by Alain Aspect and his colleagues that showed the violation of → Bell's inequality. Accordingly, quantum phenomena cannot be described by the → hidden variable theories, contrarily to the → EPR paradox interpretation.

Alain Aspect (1947-); → experiment. Aspect et al., 1982, Physical Review Letters, Vol. 49, No. 25 and references therein.

asperity
  زفتی   
zafti

Fr.: aspérité   

1) Roughness or unevenness of surface.
2) Physics: A microscopic projection on a metal surface resulting from normal surface finishing processes.
3) Geology: A site on a → fault surface where the two sides are held together by an area of higher strength than the areas surrounding it. When the stress on the fault exceeds the strength of the asperity, the asperity fails as an → earthquake.

M.E. asperite, from O.Fr. asperité "difficulty, painful situation," from L. asperitas, from asper "rough, harsh," of unknown origin.

From zaft "thick, gross, rude," (Steingass, Dehxodâ), + noun suffix -i.

assembly
  همایش   
hamâyeš (#)

Fr.: assemblée   

A company of persons gathered for a common reason, as for deliberation, legislation, worship, or entertainment.
The act of assembling; the state of being assembled.

M.E. assemblee, from M.Fr., from O.Fr., from assembler "to gather together."

Hamâyeš, from ham- "together," → com- + âyeš "coming," from ây- present stem of âmadan "to come;" O.Pers. aitiy "goes;" Av. ay- "to go, to come," aēiti "goes;" cf. Skt. e- "to come near," eti "arrival;" Gk. eimi "I go," L. ire "to go, walk," eo "I go;" Tokharian AB i-; PIE *ei- "to go, to walk."

assert
  ستواردن   
sotvârdan

Fr.: affirmer   

To state with assurance, confidence, or force; state strongly or positively; affirm.

From L. assertus, p.p. of asserere/adserere "to claim, lay claim to, declare," from → ad- "to" + serere "to join together, range in a row," from PIE root *ser- (2) "to line up."

Sotvârdan from sotvâr, ostovâr "firm, reliable," Mid.Pers. awestwâr, ôst "firm, reliable," O.Pers./Av. sta- "to stand; set," (Av. hištaiti, cf. Skt. sthâ- "to stand," Gk. histemi "put, place, weigh," stasis "a standing still," L. stare "to stand"); PIE base *sta- "to stand."

assertion
  ستوارش   
sotvâreš

Fr.: affirmation   

The act of asserting or something that is asserted.

assert; → -tion.

assign
  نشاردن   
nešârdan

Fr.: assigner   

1) To give or allocate; allot.
2) To give out or announce as a task.
3) To designate; name; specify (Dictionary.com).

M.E. assignen, from O.Fr. assiginer "assign; appoint legally; allot," from L. assignare "to mark out, to allot by sign," from → ad- "to" + signare "to make a sign," from signum "mark," → sign

Nešârdan, from neš, → sign, + nuance suffix -âr.

assignation
  نشارش   
nešâreš

Fr.: rendez-vous, attribution   

1) An appointment for a meeting.
2) The act of assigning; → assignment (Dictionary.com).

Verbal noun of → assign.

assignment
  نشارمان   
nešârmân

Fr.: mission, attribution, allocation, affectation   

1) An act of assigning; appointment.
2) Something assigned, as a particular task or duty.
3) A position of responsibility, post of duty, or the like, to which one is appointed (Dictionary.com).

Verbal noun of → assign.

associate
  ۱) آهزیدن؛ ۲) آهزیده شدن؛ ۳) آهزگار   
1) âhazidan; 2) âhazide šodan; 3) âhazgâr

Fr.: 1a) associer; 1b) s'associer; 2) associé; allié   

1) (v.tr.) To join or connect together; to bring together or into relationship in any of various intangible ways (as in memory or imagination). → dissociate.
2) (v.intr.) To come or be together as partners, friends, or join with other parts.
3) A person joined with another or others in business or at work; something that usually accompanies another thing.

M.E. associat "associated," from L. associatus, p.p. of associare "to unite," from ad- + sociare "to join," from socius "ally, companion" ("follower"); PIE base *sekw- "to follow."

Âhazidan, from â- prefix + hazidan "to associate, accompany, follow," from Av. hac-, hax- "to associate, follow, accompany" (hacenay- "getting together, association," haxay-, hašy-, haš- "friend"), hacaiti "follows;" hacā "from, out of;" O.Pers. hacā "from" (Mid.Pers. hâz- "to lead, guide," hac "from;" Mod.Pers. az "from"); PIE base *sekw- "to follow;" cf. Skt. sac- "to be associated or united with," sácate "accompanies, follows," sácā "with;" Gk. hepesthai "to follow;" L. sequi "to follow."
Âhazgâr, from âhaz- present stem of âhazidan + agent noun suffix -gâr, → -or, as in âmuzgâr, parhizgâr, sâzgâr, âmizgâr, sepuzgâr.

associated molecular cloud
  ابر ِ مولکولی ِ آهزیده   
abr-e molekuli-ye âhazidé

Fr.: nuage moléculaire associé   

A → molecular cloud that is physically or apparently related to a star formation region.

associate; → molecular; → cloud.

association
  آهزش؛ انجمن   
âhazeš; anjoman (#)

Fr.: association   

1) The act of associating, → associate; the state of being associated.
2) A group of → astronomical objects physically or apparently gathered in a particular area of sky, for example an → stellar association.
3) An organization of persons having a common interest. → dissociation.

Association, noun from → associate.

Âhazeš, verbal noun of → âhazidanassociate. Anjoman, for the meaning 3, from Mid.Pers. anjaman, from Av. han-jamana, from han- "together" + jamana, from gam- "to come;" cf. Skt. samgamana "gathering together."

association member
  هموند ِ آهزش   
hamvand-e âhazeš

Fr.: membre d'une association   

A celestial body making part of an astronomical association.

association; → member.

associative
  آهزشی، آهزنده   
âhazeši, âhazandé

Fr.: associatif   

1) Of, characterized by, resulting from, or causing association.
2) In a mathematical operation, being independent of the sequence in which the elements are grouped. For ex., if a + (b + c) = (a + b) + c, the operation indicated by + (addition) is associative.

Adj. from associate.

associative algebra
  جبر ِ آهزشی   
jabr-e âhazeši

Fr.: algèbre associative   

An algebra whose multiplication is associative.

associative; → algebra.

<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer aga air Alf Alg alk Alp alt alu amm ana And ang ani ano ant ant Ap apo app app Aqu Arc arg arr asc ass ast ast asy atm ato att aur aut axi B-m bad Bal bar bar Bay Bed ber Bet bif bim bin bio bis bla ble blu Bod Bol bor bou Bra Bre bro bul C-t Cal Cam can car Car Cas cat cav cel cen cer Cha cha Cha che chl Cir cir cir Cla cli clo clu co- coc 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 Cre cri cro cub cur cyc cyl Dan dat Dav de- Deb dec dec dee def deg del Den den der det deu dew dic dif dif dil Dip dir dis dis dis dis dis diu dod Dop dou Dra dua dus dwa dyn DZ Ear ecc eco edi EHB Ein ela ele ele ele ele ell eme emp end Eng ent epi equ equ era ESP eth Eur evi exa exc exe exi exp exp ext ext ext fac fal far fec Fer fer fie fin fir fis fla Flo flu fog for for Fou fra fre fre Fro fun G s Gal gal gal Gar gau geg gen geo geo geo ger gla gly gra gra gra gra gra Gre gro GYR Had Hal hap Har HD hea hel hel Hen Her hex hig Hil hol Hoo hor hou Hub hum hyb hyd hyd hyp hys ide ign ima imp imp in- inc Ind ind ine inf inf inf ini ins ins ins int int int int Int int int int inv ion iri irr iso iso iso Jea Jor jum K c Kep Ker kin kno lab Lam Lan Lap las lat Le lef len lev lig lig lin lin lin liq Lit loc log lon lou LS lun lun Lym M s Mag mag mag mag mag mag maj man Mar mas mas mat May mea mec mel mer mes met met met mic mid mil Min Mir mix mod mod mol mon mor mov mul mur mys nan nat nav nec Nep neu New New NGC nob nom non non nor nos nuc nuc num nut obj obl obs occ oct off oli oni ope opp opt opt orb ord org orp osc out ove oxi P-w pal par par par par Pas pat pej per per per per per per pha Phe pho pho pho phy pin pla Pla pla pla pla plu poi pol pol Pol pol por pos pot Poy pre pre pre pre pri pri pri pro pro pro pro pro pro Psa pul pum Q i qua qua qua qua R A rad rad rad rad rad rad Ram Ran rat rea rea rec rec red red ref ref reg rei rel rel rem rep res res res ret rev Rho Rie ril riv rog Ros rot rul S A Sag sam sat sca sca Sch Sco Sec sec sec seg sel sem sen set Sha sha shi sho sid sig sim sin Sir ske sli Smo soc sof sol sol sol sol sou sou spa spe spe Spe spe sph spi Spi spr sta sta sta sta sta ste ste ste Sto str str sub sub sub suc sun sup sup sup sup sur swa syn syn tac tas tel tem ter tes the the the the thi thr tid til tip ton tor tou tra tra tra tra Tri tri tru tsu tur two Typ UHE ult unc uni uni uni upg 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 > >>