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: 13176 Search : in
mixing ratio
  وابر ِ آمیزش   
vâbar-e âmizeš

Fr.:rapport de mélange   

Mass of water vapor per mass of dry air; expressed as grams per kilogram. → humidity

mixing; → ratio.

mixture
  آمیزه   
âmizé (#)

Fr.: mixture   

An aggregate of two or more substances that are not chemically combined with each other.

M.E., from L. mixtura "a mixing," from mixtus, → mix.

Âmizé, from âmiz present stem of âmixtan, → mix.

Mizar (ζ Ursae Majoris)
  مءزر   
Me'zar (#)

Fr.: Mizar   

A star of visual magnitude 2.3 in the constellation → Ursa Major, which is the second star from the end of the → Big Dipper's handle. It forms a naked-eye double with → Alcor, lying at an angular separation of about 12 minutes of arc. Mizar is resolved into a 14''.4 → binary star (denoted A and B) with a probable period of thousands of years. Mizar A is a nearly equal-mass, → double-lined spectroscopic binary with period 20.54 days and → eccentricity of 0.53. The two components of Mizar A (denoted Aa and Ab) are both about 35 times as luminous as the Sun, and revolve around each other in about 20 days. Similarly, Mizar B is a → spectroscopic binary with a period of 175.57 days and an eccentricity of 0.46. Recent results suggest that Alcor is actually a binary and apparently → gravitationally bound to the Mizar system. This would make the Mizar-Alcor system a probable → sextuplet, lying at about 78 → light-years from Sun and the second closest such multiple known, after → Castor (Mamajek et al., 2010, AJ 139, 919).

Mizar, from Ar. al-Mi'zar (المءزر) "loin cloth, apron, veil."

mJy
     
mJy

Fr.: mJy   

A unit of → radio flux density, equal to 10-3 → jansky (Jy).

milli-; → jansky (Jy).

MK system
     

Fr.:   

A system of stellar → spectral classification. The same as → Morgan-Keenan classification. Also called MKK system, → Yerkes system.

Morgan-Keenan classification.

MKS system
  راژمان ِ MKS   
râžmân-e MKS

Fr.: système MKS   

The system of → MKS units.

MKS unit; → system.

MKS units
  یکاهای ِ م.ک.ث.   
yekâhâ-ye MKS

Fr.: unités MKS   

The international system of units based on the → meter, → kilogram, and → second.

MKS, the initials of → meter, → kilogram, and → second; meter, kilogram, and second; → unit.

mnemonic
  یادسپار، یادسپاریک   
yâdsepâr (#), yâdsepârik

Fr.: mnémonique   

1) (adj.) Assisting or intended to assist the → memory.
2) (adj.) Pertaining to → mnemonics or to memory.
3) (n.) Something intended to assist the memory, as a verse or formula. For example, "Oh, Be A Fine Girl, Kiss Me Right Now Sweetheart!" is a mnemonic for the sequence of stellar → spectral types.

From Gk. mnemonikos "of or pertaining to memory," from mnemon "remembering, mindful," from mnasthai "remember," from PIE base *men- "to think;" cf. Pers. man-, -mân, minu, → idea.

Yâdsepâr, stem of Yâdsepârdan "memorize," from yâd "remembrance, recollection, memory" (Mid.Pers. ayâd) + sepârdan, sepor- "to yield, give, hand over" (Mid.Pers. abespâr- "to hand over, entrust;" cf. O.N. spara, O.H.G. sparon, O.E. sparian, E. spare); yâdsepârik, → mnemonics.

mnemonics
  یادسپاریک   
yâdsepârik

Fr.: mnémonique   

Something capable of assisting one's memory. The process or technique of improving the memory.

mnemonic; → -ics.

mobile
  میاوا   
miyâvâ

Fr.: mobile   

1) Capable of moving or being moved readily.
2) A mobile phone.

From M.Fr. mobile, from L. mobilis "movable, easy to move; loose, not firm," contraction of *movibilis, from movere "to → move."

Miyâvâ verval adj. and agent noun from miyâvidan, → move.

Möbius band
  باند ِ موی‌بیوس   
bând-e Möbius

Fr.: ruban de Möbius   

A surface with only one side, made by putting a simple twist in a long, rectangular strip of paper, then pasting the ends together.

After the German astronomer and geometer August Ferdinand Möbius (1790-1868); → band.

modal
  مدی، مدمند   
modi, modmand

Fr.: modal   

Of or relating to mode, manner, or form.

mode; → -al.

modality
  مدیگی، مدمندی   
modigi, modmandi

Fr.: modalité   

The quality or state of being → modal.

modal; → -ity.

mode
  ترز، طرز، مُد   
tarz, mod

Fr.: mode   

1) Physics: Any of the distinct patterns of oscillation that a given periodically varying system can have.
2) Math.: In a series of statistical data, the item or value which occurs most frequently. It is a measure of central tendency.

Mode, from Fr. mode, from L. modus "measure, rhythm, song, manner," from PIE base *med- "to measure, limit, judge, advise;" cf. L. meditari "to think or reflect upon, consider;" Av. mad- "to measure out, apportion, allot;" Gk. medein "to rule;" O.E. metan "to measure out."

Tarz "manner, mode," Arabicized as طرز. Tarz may be related to Av. darəsa- "appearance, looking" (huuarə.darəsa- "having the appearance of the sun"), from Av. darəs- "to look;" cf. Skt. darś-, drś- "to see, appear, look, show" darśa- "apperance, look," drśta- "apparent, visible."
Mod, loan from Fr., cognate with Av. mad- "to measure out, apportion, allot," as above.

model
  ۱) مدل، ترزال؛ ۲) مدل‌ساختن، ترزالیدن   
1) (n.) model, tarzâl; 2) (v.) model sâxtan, tarzâlidan

Fr.: 1) modèle; 2) modéliser   

1a) A mathematical representation of a process, system, or object developed to understand its behavior or to make predictions. The representation always involves certain simplifications and assumptions. See also → theory, → hypothesis.
1b) A mental image of a phenomenon using familiar terms (or images). For example, in the Bohr model the atom is visualized as a nucleus with electrons orbiting around it in a manner similar to the way that planets revolve around the Sun. While this model is use ul in understanding the atom, it is an over-simplified description of a real atom and does not describe/predict all of its attributes (G. Smooth, Lawrence Berkeley Lab website).
2) To make or construct a model of.

M.Fr. modelle (Fr. modèle), from It. modello "a model, mold," from V.L. *modellus, from L. modulus "measure, standard," from modus "manner, measure" (cf. Av. mad-, → mode), PIE *med- + -ulus, → -ula.

1) Model, from Fr. modèle. Tarzâl, from tarz, → mode + -âl, → -al.
2) Model sâxtan, from model + sâxtan, sâzidan "to build, make, fashion; to adapt, adjust, be fit" (from Mid.Pers. sâxtan, sâz-, Manichean Parthian s'c'dn "to prepare, to form;" Av. sak- "to understand, to mark," sâcaya- (causative) "to teach").
Tarzâlidan, from tarzâl + -idan infinitive suffix.

model dependence
  وابستگی به مدل، ~ ~ ترزال   
vâbastegi bé model, ~ ~ tarzâl

Fr.: dépendance du modèle   

In a theoretical analysis, the solution that does not correctly treat the intervening parameters, or neglects some crucial factors.

model. dependence, noun of → dependent.

modeling
  مدل‌سازی، ترزالش   
modelsâzi, tarzâleš

Fr.: modélisation   

The simulation of a process, concept, or operation of a system often implemented by a computer program and making use of a mathematical treatment.

Verbal noun of → model

modern
  نوین   
novin (#)

Fr.: moderne   

1) Relating or belonging to present and recent time. → modern physics.
2) Of or pertaining to the historical period following the Middle Ages.
3) Of the latest, most advanced kind, or using the most advanced equipment and techniques available.

From M.Fr. moderne, from L.L. modernus, from L. modo "lately, just now," from modo "to the measure," ablative of modus "manner, measure," → mode.

Novin, from now, → new, + -in adj. suffix, as in dirin, pasin, barin, kehin, mehin, behin, zirin, zabarin, pâyin, bâlâyin.

modern physics
  فیزیک ِ نوین   
fizik-e novin (#)

Fr.: physique moderne   

The physics developed since about 1900, which includes Einstein's → relativity theory and → quantum mechanics, as distinguished from → classical physics. Much of modern physics is concerned with the behavior of matter and energy under extreme conditions or on the very small scale.

modern; → physics.

modernism
  نوین‌گرایی   
novingerâyi

Fr.: modernisme   

1) Modern spirit or character.
2) Modern usage, expression, or trait.
3) In early 20th century art, literature, and architecture, a movement characterized by the use of unconventional subject matter and style, experimental technique, etc.

modern + → -ism.

<< < -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 > >>