An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 12948 Search : far
bind
  بندیدن   
bandidan (#)

Fr.: lier   

To tie, to fasten, to cause ti stick together.

O.E. bindan "to tie up with bonds," PIE base *bhendh- "to bind;" cf. Av./O.Pers. band- "to bind, fetter," banda- "band, tie," Skt. bandh- "to bind, tie, fasten," bandhah "a tying, bandage."

Bandidan "to bind, confine" [Mo'in, Dehxodâ], from band "band, tie" + -idan infinitive suffix; cognate with E. bind, as explained above.

binding energy
  کاروژ ِ بندش، ~ همگیری   
kâruž-e bandeš, ~ hamgiri

Fr.: énergie de liaison   

1) Of a gravitational system, the difference in energies between the hypothetical state where all bodies of the system are infinitely separated from each other and the actual bound state.
2) The energy which must be supplied to a nucleus in order to cause it to decompose into its constituent neutrons and protons.

Binding, noun from → bind; → energy.

Kâruž, → energy; bandeš noun from bandidan, → bind.

binning
  باوینش   
bâvineš

Fr.: binage   

Combining a few adjacent CCD pixels in bins, during readout; the method used to assemble the bins and transfer the charge by means of an electronic clock. Binning improves signal-to-noise ratio at the expense of spatial resolution.

Binning, from → bin.

Bâvineš, from bâvin, → bin.

binoculars
  دوچشمی، دوربین ِ ~   
docašmi (#), durbin-e ~ (#)

Fr.: binoculaire   

A small optical instrument with two tubes that is used to magnify the view of distant or astronomical objects. → prism binoculars.

From Fr. binoculaire, from binocle, from L. bini "double" (L. bis, bi- "twice," Av. biš "twice") + ocularis "of the eye," from oculus "eye" (compare with Av. axš-, aš- "eye," Skt. akshi- "eye," Gk. ops "eye," opsis "sight, appearance," from PIE okw- "to see;" also O.E. ege, eage, from P.Gmc. *augon, Goth. augo, Lith. akis, Armenian aku).

Docašmi "binocular," from do, → two + cašm, → eye, + -i adj. suffix; durbin, → telescope.

binomial
  دونامین   
donâmin

Fr.: 1) binôme; 2) binomial   

1a) An algebraic expression containing 2 terms, as x + y and 2x2 - 3x. In other words, a → polynomial with 2 terms.
1b) Biology: A pair of Latin (or latinized) words forming a scientific name for organisms. The first word represents the genus, and the second the species.
2) Of, pertaining to, or consisting of a binomial.

From L.L. binomi(us) "having two names," + → -al, → nominal.

binomial coefficient
  همگر ِ دونامین   
hamgar-e donâmin

Fr.: coefficient binomial   

The factor multiplying the variable in a term of a → binomial expansion. For example, in (x + y)4 = x4 + 4x3y + 6x2y2 + 4xy3 + y4 the binomial coefficients are 1, 4, 6, 4, and 1. In general, the r-th binomial coefficient in the expression (x + y)n is: (n,r) = n!/[r!(n - r)!].

binomial; → coefficient.

binomial differential
  دگرسانه‌ی ِ دونامین   
degarsâne-ye donâmin

Fr.: binôme différentiel   

An expression of the form xm(a + bxn)pdx, where m, n, p, a, and b are constants.

binomial; → differential.

binomial distribution
  واباژش ِ دونامین   
vâbâžeš-e donâmin

Fr.: distribution binomiale   

A probability distribution for independent events for which there are only two possible outcomes i.e., success and failure. The probability of x successes in n trials is: P(x) = [n!/x!(n - x)!] px.qn - x, where p is the probability of success and q = 1 - p the probability of failure on each trial. These probabilities are given in terms of the → binomial theorem expansion of (p + q)n.

binomial; → distribution.

binomial expansion
  سپانش ِ دونامین   
sopâneš-e donâmin

Fr.: expansion binomiale   

A rule for the expansion of an expression of the form (x + y)n. The variables x and y can be any → real numbers and n is an → integer. The general formula is known as the → binomial theorem.

binomial; → expansion.

binomial nomenclature
  نامگذاری ِ دونامین   
nâmgozâri-ye donâmin

Fr.: nomenclature binomiale   

A system introduced by Carl von Linné (1707-1778), the Swedish botanist, in which each organism is identified by two names. The first is the name of the genus (generic name), written with a capital letter. The second is the name of the species (specific name). The generic and specific names are in Latin and are printed in italic type. For example, human beings belong to species Homo sapiens.

binomial; → nomenclature.

binomial theorem
  فربین ِ دونامین   
farbin-e donâmin

Fr.: théorème du binôme   

A rule for writing an equivalent expansion of an expression such as (a + b)n without having to perform all multiplications involved. → binomial expansion. The general expression is (a + b)n = &Sigma (n,k)akbn - k, where the summation is from k = 0 to n, and (n,k) = n!/[r!(n - k)!]. For n = 2, (a + b)2 = a2 + 2ab + b2. Historically, the binomial theorem as applied to (a + b)2 was known to Euclid (320 B.C.) and other early Greek mathematicians. In the tenth century the Iranian mathematician Karaji (953-1029) knew the binomial theorem and its accompanying table of → binomial coefficients, now known as → Pascal's triangle. Subsequently Omar Khayyam (1048-1131) asserted that he could find the 4th, 5th, 6th, and higher roots of numbers by a special law which did not depend on geometric figures. Khayyam's treatise concerned with his findings is lost. In China there appeared in 1303 a work containing the binomial coefficients arranged in triangular form. The complete generalization of the binomial theorem for all values of n, including negative integers, was established by Isaac Newton (1642-1727).

binomial; → theorem.

bio-
  زیست-   
zist- (#)

Fr.: bio-   

Bio-, Gk., from bios "life," from PIE base *gweie- "to live;" cf. O.Pers./Av. gay- "to live," Av. gaya- "life," gaeθâ- "being, world, mankind," jivya-, jva- "aliving, alive," Skt. jivah "alive, living;" Mid.Pers. zivastan "to live," zivik, zivandag "alive, living," L. vivus "living, alive," vita "life," O.E. cwic "alive," E. quick, Lith. gyvas "living, alive."

Zist "life, existence," from zistan "to live," Mid.Pers. zivastan "to live," zivižn "life," O.Pers./Av. gay-, as explained above.

bioastronomy
  زیست‌اخترشناسی   
zistaxtaršenâsi (#)

Fr.: bioastronomie   

A common branch of astronomy and biology dealing with the study of life throughout the Universe; synonymous with → astrobiology and → exobiology.

Bioastronomy, from → bio- + → astronomy.

Zistaxtaršenâsi, from zist-, → bio-, + axtaršenâsi, → astronomy.

biodiversity
  زیست‌گوناگونی   
zistgunâguni

Fr.: biodiversité   

The → variety of → plant and → animal → species in a particular → environment.

bio-; → diversity.

bioinformatics
  زیست-ازداییک   
zist-azdâyik

Fr.: bioinformatique   

The retrieval and analysis of biochemical and biological data using mathematics and computer science, as in the study of genomes (Dictionary.com).

bio-; → informatics.

biologist
  زیست‌شناس   
zistšenâs (#)

Fr.: biologiste   

An expert or specialist in biology.

Biologist, from → biology + → -ist.

biology
  زیست‌شناسی   
zistženâsi (#)

Fr.: biologie   

The study of living organisms and their interactions with the non living world.

Biology, from → bio- + → -logy.

bioluminescence
  زیست-فروزستی   
zist-foruzesti

Fr.: bioluminescence   

The production and emission of light by a living organism as the result of a chemical reaction (→ chemiluminescence). In other words, bioluminescence is chemiluminescence from living organisms. It is widespread in the marine environment, but rare in terrestrial and especially freshwater environments.

chemi-; → luminescence.

biomarker
  زیست-داجگر   
zist-dâjgar

Fr.: biomarqueur   

A biologic feature that is measured and evaluated as an indicator of normal biological processes, pathogenic processes, or pharmacological responses to a therapeutic intervention. For example, prostate specific antigen (PSA) is a biomarker for cancer of the prostate.

bio-; → marker.

biophysicist
  زیست‌فیزیکدان   
zistfizikdân (#)

Fr.: biophysicien   

A specialist in → biophysics.

bio-; → physicist.

<< < -es -iv -ti 21- A r abe abs abs acc acc acc act act ada adi adu aff age alc Alf ali all alp alt ama amp ana ang ang ann ano ant ant ape apo app aps arc Arg ari art ass ast ast ast atm ato att aur aut axi B r bac Bal Bar Bar Bay bec Ber Bet Bie bij bin bio bis bla bla blu blu bol Bor bou Bra bre bro Bug C-s cal Cam can car Car Cas cat cav cel cen cer Cha cha cha che cho cir cir cir cla clo clo clu 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 coo cor cor cor cos cos cos Cou cou Cra Cre cri cro cub cur cyc cyl dar dat daw de- Deb dec dec dee def deg del Den dep der det deu dew dic dif dif dil dip dir dis dis dis dis dis div dog Dop dou dra dua dus dwa dyn e-m ear ecl eco eff ein Ein elb ele ele ele ele Els emi emp ene enr env epi equ equ Eri est Euc eva evo exc exc exh exo exp exp ext ext f-n Fah fam fau fee Fer fib fil fin fir fix fle flu foc for for for fra fre fre fri fun fuz gal gal gal Gan gau GCN gen geo geo geo geo Gl glo gra gra gra gra gra gre gro GW1 hab hal han HAR haz hea hel hel Hen Her heu Hig Hil hol hop hor hou Hub Hum Hyd hyd hyd hyp hys ide ign ima imp imp inc inc ind ine inf inf inf inh INP ins ins int int int int Int int int int inv ion iri irr iso iso iso Jea Jos Jun K2 Kep key kin Kol lag lam Lan lar las lav lea leg len lev lig lim lin lin lin lis lob loc log lor low lum lun lun Lym Mac mag mag mag mag mag mai Mal mar mas mas mat max mea mea mee Men mer met met met mic mid Mil min Mir mix mod mod mol mon Mor mou mul muo mys nan nat nav nec Nep neu New New NGC nob nom non non nor not nuc nuc num Nyq obj obs obs oce oen OH omn opa ope opt opt opt orb ord Ori ort osc out ove oxy pal pan par Par par par pas pea Pen per per per per per pet pha pho pho pho phy pie Pit Pla pla pla pla ple Poi pol pol pol pol pop pos pos pow pre pre pre Pre pri pri pri pro pro pro pro pro pro Pro pub pul pyr qua qua qua qua Qui rad rad rad rad rad rad ram ran rat rea rec rec rec red ref ref reg reg rel rel rem rep res res res ret rev rho Rie rim riv rol Ros rot rul S a Sah san Sat sca Sch Sch scr sec sec sec sei sel sem sep set sha she sho sid sig sil sim sin sit sky slu sno sof sol sol sol sol sou sou spa spa spe spe spe sph spi spl spr sta sta sta sta sta ste ste sti sto str str sub sub sub sug sun sup sup sup sup sur syl syn sys tal Tay tel ten ter tex the the the thi tho thu tid tim tod top tot tra tra tra tra tri tri tro tru tur twi Typ UFO ult unc uni uni uni upg ura uti val var vec vel ver ver vig vir vis voc von wak Was wav wax wea wei whi Wie win WN6 wom X-r yel you zer zod > >>