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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<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer AGB air Alf Alg all alp alt AM amo ana And ang ani ano Ant Ant apa apo app app Ara Arc ari Arr ash ass ast ast asy atm ato att aut ave axi Bab bal Bal bar bar bea Bek Bes bia Big bin bin bip biv bla bli blu Boh Bol Bos bou bra bri bro buo cal cal can cap car Car cat cat CCD Cen cen CH cha cha che Che chr cir cir cit 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 con Cop Cor cor cor cos cos cou cou Cow cre cri cro cry cur cya Cyg dan dar dat de- deb dec dec ded def deg del dem den dep des det dev dia dif dif dih dio Dir dis dis dis dis dis dis DO don dou dow dro dur dwa dyn Dys ear ebb ecl edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ esc eth Eur Eve exa exc exe exi exp exp ext ext ext fac fal far fed Fer fer fie fin fir fis fla flo flu fol for for fou fra fre Fre fro fut G-t gal gal gam gas Gau Gem gen geo geo geo gia Gli Gol gra gra gra gra gre gri gui H I Hag hal har hat He- hea hel Hel her Hes hie hig his hom hor hot Hub Hug hur hyd hyd hyg 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 Io ion iro isl iso iso Jac jet jud jur Kel Kep kil Klo Kui Lag lam Lap Lar lat law lea len lep Lib lig lim lin lin Lio lit loc LOF lon Lor low lum lun Lup Lyo mac mag mag mag mag mag mai man Mar mas mas mat Max mea mec Meg Mer Mer met met Met mic Mid Mil min Mir mit mod mod mol mon Mor mou mul mul mys nan Nat nau nec neo neu nev New NGC no nom non non nor not nuc nuc num nut obj obs obs occ ocu oft ome Oor ope opp opt opt orb ord ori ort osc out ove oxi pai pan par par par par pas pea pen per per per per Per per pha phi pho pho pho phy pio Pla pla pla pla Pla plu Poi pol pol pol poo pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro Pro pro pse pul pur qua qua qua qua que rac rad rad rad rad rad rad 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 Rus Sac sal sat sca sca Sch sci Scu sec sec Sed sel Sel sen ser Sex Sha she sho sid sig sil sim sin siz sla Sma sno sof sol sol sol sol sou sou spa spa spe spe spe sph spi spi spr squ sta sta sta sta ste ste ste Sto Str str str sub sub suc sun sup sup sup sup sur swa syn syn tab tar tek tem ter tes the the the the Tho thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur two Typ ult un- und uni uni unk upp Urc utt val var vec vel ver vib vio vir vis voi vor wan wat wav wax wea Wei whi Wil win WN9 wor X-r yel you zer zod > >>

Number of Results: 13048 Search : far
mechanical equivalent of heat
  هم‌ارز ِ مکانیکی ِ گرما   
ham-arz-e mekâniki-ye garmâ (#)

Fr.: équivalent mécanique de chaleur   

Same as → Joule's constant.

mechanical; → equivalent; → heat.

mechanical mixing
  آمیزش ِ مکانیکی   
âmizeš-e mekâniki

Fr.: mélange mécanique   

Any → mixing process that utilizes the → kinetic energy of relative → fluid motion.

mechanical; → mixing.

mechanical power
  توان ِ مکانیکی   
tavân-e mekâniki (#)

Fr.: puissance mécanique   

The → rate at which → work is done by a → force. In other words, → mechanical energy per unit time. Mechanical power is expressed in units of joules/sec (joules/s) or a watt (W) in the → mks system.

mechanical; → power.

mechanical system
  راژمان ِ مکانیکی   
râžmân-e mekâniki

Fr.: système mécanique   

1) Any system of elements that interact according to the laws of → mechanics (as distinguished from chemical, electrical, thermal, etc.).
2) A collection of → machines functioning together to achieve the transfer of motion.

mechanical; → system.

mechanical wind
  باد ِ مکانیکی   
bâd-e mekâniki

Fr.: vent mécanique   

A process in which matter is shed into a → Keplerian disk from a star rotating at the → critical velocity. The disk is probably destroyed by the pressure exerted by the stellar radiation and finally matter is lost. Such a process seems to occur around → Be stars which are stars rotating at or very near the critical limit (Meynet et al. 2007, arXiv:0709.2275).

mechanical; → wind.

mechanically
  ساز-و-کاریکانه، ساز-و-کاروارانه   
sâzokârikâné, sâzokârvârâné

Fr.: mécaniquement   

1) In a mechanical manner; by a mechanism.
2) In a machine-like manner; without feeling.

mechanical; → -ly.

mechanician
  ساز--و-کارمند، ساز-و-کار-گر   
sâzokârmand, sâzokârgar

Fr.: mécanicien   

A person skilled in constructing, working, or repairing machines; mechanic; machinist (Dictionary.com).

From → mechanic + -ian.

mechanics
  مکانیک، ساز-و-کاریک   
mekânik (#), sâzokârik

Fr.: mécanique   

A branch of → physics that deals with motion and the → action of → forces on bodies. Mechanics may be divided into three areas, → kinematics, → dynamics, and → statics.

From mechanic, from L. mechanicus, from Gk. mekhanikos "an engineer," also "inventive," literally "pertaining to machines" (adj.), from mekhane, → machine, + → -ics.

Mekânik, loan from Fr. Sâzokârik, from sokâr, → mechanism, + -ik, → -ic.

mechanism
  ساز-و-کار   
sâzokâr (#)

Fr.: mécanisme   

1) The structure or arrangement of parts of a machine or similar device, or of anything analogous.
2) The agency or means by which an effect is produced or a purpose is accomplished.

From Mod.L. mechanismus, from Gk. mekhane, → machine.

Sâzokâr, literally "making and working," from sâz "apparatus; (musical) instrument," from sâzidan, sâxtan "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") + kâr "work," from kardan "to do, to make" (Mid.Pers. kardan; O.Pers./Av. kar- "to do, make, build;" Av. kərənaoiti "he makes;" cf. Skt. kr- "to do, to make," krnoti "he makes, he does," karoti "he makes, he does," karma "act, deed;" PIE base kwer- "to do, to make").

median
  میانه   
miyâné (#)

Fr.: médiane   

Statistics: The middle value in a sample sorted into ascending order. If the sample contains an even number of values, the median is defined as the mean of the middle two.
Geometry: The line from a vertex of a triangle to the midpoint of the opposite side.

From M.Fr. médian, from L. medianus "of the middle," from medius "middle;" akin to Pers. middle, → medium, → meddle; from PIE *medhyo-, from base *me- "between;" → medium.

Miyâné from miyân, → middle, + nuance suffix.

medicine
  پزشکی   
pezeški (#)

Fr.: médecine   

The art or science of restoring or preserving health or due physical condition, as by means of drugs, surgical operations or appliances, or manipulations (Dictionary.com).

M.E. medicin, from O.Fr. medecine "art of healing, cure," from L. medicina "the healing art; a remedy," feminine of medicinus (adj.) "of a doctor," from medicus "a physician;" PIE root *med- "to measure, limit, consider, advise," → dimension; cf. Av. vi-mad- "physician;" Gk. medein "to rule;" L. meditari "think or reflect on, consider," → meditation; Ir. miduir "judge;" O.E. metan "to measure out."

Pezeški, from pezešk "physician," from Mid.Pers. bizešk "physician," bêšâz "medicinal;" Av. bišaz- "to cure, heal;" cf. Skt. bhisaj- "healer, physician."

meditate
  سگالیدن   
segâlidan (#)

Fr.: méditer   

To engage in thought or contemplation; reflect. → consider.

Back formation from → meditation.

Segâlidan "to meditate, consider, think," from Mid.Pers. uskaridan "to think, consider, discuss," from us-, → ex-, + kar- "to observe, to consider;" related to engâridan, negaristan, âgâridan, → consider.

meditation
  سگالش   
segâleš (#)

Fr.: méditation   

The act of meditating. → consideration.

From L. meditatatus p.p. of meditari "to think over, reflect, consider," from PIE root *med- "to measure, limit, consider, advise," → mode.

Verbal noun of → meditate.

medium
  مدیم   
madim

Fr.: milieu   

An intervening substance through which an effect is produced; surrounding objects, conditions, or influences; environment. → interstellar medium.

From L. medium, from neut. of adj. medius "middle," from PIE *medhyo- "middle;" cf. Av. maδəma- "middle," as below.

Madim, from Av. maδəma- [adj.] "middle, being in the middle; middling, of a middling size or quality," maiδim "in the midst of," maiδyāna- "the middle;" cf. Skt. mádhya- "middle;" Gk. messos; Goth. midjis; O.E. midd "middle;" O.C.S. medzu "between," Arm. mej "middle;" L. medium, as above.

meet
  موازیدن   
mavâzidan

Fr.: renconter   

To come upon; come into the presence of; encounter.

M.E. meten, from O.E. metan "to find, find out; encounter; obtain," cognate with O.Frisian meta, O.Sax. motian "to meet," Goth. gamotijan, ultimately from PIE root *mod- "to meet, assemble."

Mavâzidan, from Sogd. mwz "to meet together, encounter" (Cheung 2007); ultimately from Proto-Ir. *ham-uaz-, from *ham- "together, → com-," + *uaz- "to move, carry, drive;" cf. Av. vaz- "to move, carry, drive (a chariot);" Pers. vazidan "to blow;" parvâz "→ flight."

meeting
  مواز   
mavâz

Fr.: rencontre   

1) The act of coming together.
2) An → assembly or conference of persons for a specific purpose (Dictionary.com).

meet; → -ing.

mega-
  مگا-   
megâ- (#)

Fr.: méga-   

1) Prefix, often meaning "large, great."
2) Prefix meaning 106.

From Gk. megas "great, large, mighty," from PIE *meg- "great;" cf. L. magnus, Goth. mikils, O.E. micel.

megaparsec (Mpc)
  مگاپارسک   
megâpârsek (#)

Fr.: mégaparsec   

A unit of distance equal to a million → parsec (pc)s, or 3.26 million → light-years.

mega-; → parsec.

megastructure
  مگاساختار   
megâsâxtâr

Fr.: mégastructure   

Same as → Dyson sphere.

mega-; → structure.

megatons of TNT
  مگاتن ِ TNT   
megâton-e TNT (#)

Fr.: megatonnes de TNT   

A unit of explosive force equal to one million metric tons of → T.N.T.. 1 megaton = 4.2 × 1022 → ergs = 4.2 × 1015 → joules.

mega-; → ton.

<< < -es -iv -ti 21 a p abe abs abs aca acc acc acr act ada adh Adr aer AGB air Alf Alg all alp alt AM amo ana And ang ani ano Ant Ant apa apo app app Ara Arc ari Arr ash ass ast ast asy atm ato att aut ave axi Bab bal Bal bar bar bea Bek Bes bia Big bin bin bip biv bla bli blu Boh Bol Bos bou bra bri bro buo cal cal can cap car Car cat cat CCD Cen cen CH cha cha che Che chr cir cir cit 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 con Cop Cor cor cor cos cos cou cou Cow cre cri cro cry cur cya Cyg dan dar dat de- deb dec dec ded def deg del dem den dep des det dev dia dif dif dih dio Dir dis dis dis dis dis dis DO don dou dow dro dur dwa dyn Dys ear ebb ecl edg egg Ein Ela ele ele ele ele ell eme emp enc eng ent epi equ equ equ esc eth Eur Eve exa exc exe exi exp exp ext ext ext fac fal far fed Fer fer fie fin fir fis fla flo flu fol for for fou fra fre Fre fro fut G-t gal gal gam gas Gau Gem gen geo geo geo gia Gli Gol gra gra gra gra gre gri gui H I Hag hal har hat He- hea hel Hel her Hes hie hig his hom hor hot Hub Hug hur hyd hyd hyg 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 Io ion iro isl iso iso Jac jet jud jur Kel Kep kil Klo Kui Lag lam Lap Lar lat law lea len lep Lib lig lim lin lin Lio lit loc LOF lon Lor low lum lun Lup Lyo mac mag mag mag mag mag mai man Mar mas mas mat Max mea mec Meg Mer Mer met met Met mic Mid Mil min Mir mit mod mod mol mon Mor mou mul mul mys nan Nat nau nec neo neu nev New NGC no nom non non nor not nuc nuc num nut obj obs obs occ ocu oft ome Oor ope opp opt opt orb ord ori ort osc out ove oxi pai pan par par par par pas pea pen per per per per Per per pha phi pho pho pho phy pio Pla pla pla pla Pla plu Poi pol pol pol poo pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro Pro pro pse pul pur qua qua qua qua que rac rad rad rad rad rad rad 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 Rus Sac sal sat sca sca Sch sci Scu sec sec Sed sel Sel sen ser Sex Sha she sho sid sig sil sim sin siz sla Sma sno sof sol sol sol sol sou sou spa spa spe spe spe sph spi spi spr squ sta sta sta sta ste ste ste Sto Str str str sub sub suc sun sup sup sup sup sur swa syn syn tab tar tek tem ter tes the the the the Tho thr tid tim Tis Too Tor tra tra Tra tra tra tri tri tru Tul tur two Typ ult un- und uni uni unk upp Urc utt val var vec vel ver vib vio vir vis voi vor wan wat wav wax wea Wei whi Wil win WN9 wor X-r yel you zer zod > >>