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

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

   Homepage   
   


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


Notice: Undefined offset: 659 in /var/www/dictionary/searchDisplayPaging.php on line 18
<< < -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 > >>

Number of Results: 13176 Search : in
telluric
  زمینی   
zamini (#)

Fr.: tellurique   

1) Pertaining to the Earth, as a planet, or the earth or soil.
2) Derived from or containing → tellurium.

From L. tellur-, from tellus "earth" + → -ic.

Zamini, of or pertaining to zamin, → earth.

telluric band
  باند ِ جوّی   
bând-e javvi

Fr.: bande tellurique   

A band seen in the spectra of celestial objects, which is due to absorption by gases such as oxygen, water vapor, and carbon dioxide in the Earth's atmosphere

telluric; → band.

tellurium
  تلوریوم   
teluriom (#)

Fr.: tellure   

A brittle metallic element usually found in combination with → gold and other → metals, used to → alloy stainless → steel and → lead, and, as bismuth telluride, in thermoelectric devices; symbol Te. → Atomic number 52; → atomic weight 127.60; → melting point 450°C; → boiling point 990°C; → specific gravity 6.24 at 20°C. It was discovered by the Roumanian mine director Franz Joseph Muller von Reichenstein in 1782 and overlooked for sixteen years until it was first isolated by German chemist Martin-Heinrich Klaproth in 1798. The Hungarian chemist Paul Kitaibel independently discovered tellurium in 1789, prior to Klaproth's work but after von Reichenstein.

From L. tellur-, from tellus "earth" + -ium a L. suffix occurring in the name of some chemical elements.

Tempel-Tuttle
  تمپل-تاتل   
Tempel-Tuttle

Fr.: Tempel-Tuttle   

A → periodic comet that is the progenitor of the → Leonids meteor shower. It has a period of 33 years, a → perihelion of 0.982 → astronomical units, an → eccentricity of 0.904, and an → inclination of 162.7°. It was first discovered in 1865 though its past appearances have been traced back to 1366. Tempel-Tuttle is estimated to have a nucleus of radius 1.8 km and a mass of 1.2 × 1013 kg. Also designated 55P/Tempel-Tuttle.

Named after the German astronomer Ernst Wilhelm Tempel (1821-1889) and the American astronomer Horace Parnell Tuttle (1837-1923), who independently discovered the comet on December 19, 1865 and January 6, 1866 respectively.

temperature
  دما   
damâ (#)

Fr.: température   

A physical quantity characterizing the mean random motion of molecules in a physical body. In other words, a measure of the average kinetic energy of the particles of a system.

From L. temperatura "a tempering, moderation," from temperatus, p.p. of temperare "to moderate, to mix." Sense of "degree of heat or cold" first recorded 1670 (Boyle), from L. temperatura, used in this sense by Galileo.

Damâ, from dam "breath of an owen; bellows; smoke; air," also "moment, time," from Mid./Mod.Pers. damidan "to blow, breathe;" Av. dāδmainya- "blowing up;" cf. Skt. dahm- "to blow," dhámati "blows;" Gk. themeros "austere, dark-looking;" Lith. dumti "to blow;" PIE dhem-/dhemə- "to smoke, to blow."

temperature anisotropy
  ناهمسانگردی ِ دما، نا-ایزوگردی ِ ~   
nâhamsângardi-ye damâ (#), nâ-izogardi-ye ~

Fr.: anisotropie de température   

Cosmology: Minute temperature variations of the cosmic microwave background radiation.

temperature; → anisotropy.

temperature gradient
  زینه‌ی ِ دما   
zine-ye damâ (#)

Fr.: gradient de température   

A physical quantity that describes the rate of change of temperature with displacement in a given direction from a given reference point. Same as → thermal gradient.

temperature; → gradient.

temperature inversion
  واگردانی ِ دما   
vâgardâni-ye damâ

Fr.: inversion de température   

Meteo.: A reversal in the normal temperature decrease, the temperature rising with increased elevation in the atmosphere instead of falling. A layer in which temperature increases with altitude.

temperature; → inversion.

tempon
  تمپون   
tempon

Fr.: tempon   

An elementary unit of time defined as the duration which is necessary for light to travel a distance equal to the classical radius of an electron. Thus, one tempon (τ) is equal to (e2/mc2)(1/c)≅ 10-23 seconds.

From tamp, from L. tempus "time" + → -on.

temporal
  تامنی؛ ۱) زمانی؛ ۲) این-جهانی؛ ۳) تامنی؛ ۴) گیانی؛ ۵) زمانی   
tâmeni; 1) zamâni; 2) in-jahâni; 3) tâmeni; 4) giyâni; 5) zamâni

Fr.: temporaire   

1) Of or pertaining to time.
2) Pertaining to or concerned with the present life or this world; worldly.
3) Enduring for a time only; → temporary; transitory; → transient (opposed to eternal).
4) Secular, lay, or civil, as opposed to ecclesiastical.
5) Grammar: Of, pertaining to, or expressing time.

M.E., from O.Fr., from L. temporalis "of a time, but for a time, temporary," from tempus (genitive temporis) "time, season, proper time or season," of unknown origin.

Tâmeni, from tâmen, → time.

temporal coherence
  همدوسی ِ زمانی   
hamdusi-ye zamâni

Fr.: cohérence temporelle   

A measure of the correlation between the phases of an → electromagnetic wave at different points along the direction of propagation. Temporal coherence indicates to what extent a source is monochromatic. Imagine a source emitting waves with wavelength λ ± Δλ. Waves with wavelength λ and λ + Δλ, which at some point in space constructively interfere, will no longer constructively interfere after some path length lc = λ2/(2πΔλ); lc is called the → coherence length.

temporal; → coherence.

temporal hour
  ساعت ِ فصلی   
sâ'at-e fasli

Fr.: heure temporelle   

A unit of time used in the Roman and Ottoman empires that divided the day from sunrise to sunset into 12 equal numbers of hours, resulting in long summer hours and short winter hours.

M.E., from O.Fr. temporal, from L. temporalis "of time, temporary," from tempus (genitive temporis) "time, season, proper time or season," → time; → hour.

Sâ'athour; fasli, of or pertaining to faslseason.

temporal resolution
  واگشود ِ زمانی   
vâgošud-e zamâni

Fr.: résolution temporelle   

The measure of the ability of an observing system to clearly separate events in time. In other words, the shortest time interval that can be determined between two different events.

temporal hour; → resolution.

temporality
  تامنیگی   
tâmenigi

Fr.: temporalité   

Temporal character or nature.

temporal; → -ity.

temporary
  تامنوار   
tâmenvâr

Fr.: temporaire   

Lasting, existing, serving, or effective for a time only; not permanent.

From L. temporarius "according to circumstances, of seasonal character, lasting a short time," from tempus (genitive temporis) "time, season."

Tâmenvâr, from tâmen "time", → temporal, + -vâr suffix denoting suiting, befitting, resembling, in the manner of.

temporize
  تامنیدن   
tâmenidan

Fr.: temporiser   

To be indecisive or evasive to gain time or delay acting (Dictionary.com).

From M.Fr. temporiser "to pass one's time, wait one's time," from M.L. temporizare "to pass time," from L. tempus (genitive temporis), → temporal.

Tâmenidan from tâmen "time," → temporal, + -idan, → -ize.

ten
  ده   
dah (#)

Fr.: dix   

A cardinal number, nine plus one.

M.E. ten(e), tenn(e), O.E. ten(e), tien(e); from P.Gmc. *tekhan (cf. O.S. tehan, O.N. tiu, Dan. ti, Du. tien, O.H.G. zehan, Ger. zehn "ten"), cognate with Pers. dah, as below.

Dah, from Mid.Pers. dah "ten;" Av. dasa "ten;" cf. Skt. dáśa- "ten;" Gk. deka "ten;" L. decem "ten;" O.Ir. deich; Lith. dešimtis "ten;" PIE base *dekm.

tense
  تنو   
tanu

Fr.: tendu   

Stretched tight, as a cord, fiber, etc.; drawn taut; rigid.

From L. tensus, p.p. of tendere "to stretch," → tension.

Tanu "stretched, strained," from tan + -u suffix of excess. The first element tan, from tanidan "to spin, twist, weave" (Mid.Pers. tanitan; Av. tan- to stretch, extend;" cf. Skt. tan- to spin, stretch;" tanoti "stretches," tantram "loom;" Gk. teinein "to stretch, pull tight;" L. tendere "to stretch;" PIE base *ten- "to stretch"), Pers. târ "string," tân "thread," tur "fishing net, net, snare," and tâl "thread" (Borujerdi dialect) belong to this family; variants tanta "cobweb," tanadu, tafen, kartané, kârtané, kâtené, Pashtu tanistah "cobweb;" cf. Skt. tantu- "cobweb, thread, string").

tensile
  تنشی   
taneši (#)

Fr.: extensible   

Of or pertaining to → tension.

From M.L. tensilis "capable of being stretched," from L. tensus, p.p. of tendere "to stretch," → tension.

Taneši, related to taneš, → tension.

tensile force
  نیروی ِ تنشی   
niruy-e taneši

Fr.: force de traction   

The force tending to stretch (or produce tension in) an object

tensile; → force.


Notice: Undefined offset: 659 in /var/www/dictionary/searchDisplayPaging.php on line 18
<< < -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 > >>