<< < -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 > >>
short-period comet dombâledâr-e kutâh-dowré Fr.: comète à courte période A comet with a period less than 200 years. Same as → periodic comet. |
short-period variable vartande-ye kutâh-dowré Fr.: variable à courte période A variable star that has a relatively short period with respect to stars of similar types. |
shortage kambud (#) Fr.: pénurie 1) A deficiency in quantity. From → short + suffix -age. Kambud, from kam "little, few, deficient, scarce" + bud, from budan, → exist. |
shot effect nufe-ye Schottky Fr.: effet Schottky Same as → Schottky noise; → shot noise. Translation of Ger. Schroteffekt, from Schrot "small shot, buckshot" + Effekt; → effect. |
shot noise nufe-ye Schottky Fr.: bruit de grenaille Same as → Schottky noise and → shot effect. → shot effect. |
shoulder duš (#), soft (#) Fr.: épaule The upper joint of each of a person's → arms and the part of the → body between this and the → neck. M.E. schuldre, sholder, shulder, schulder, from O.E. sculdra, sculdor, akin to Du. schouder, Ger. Schulter. Duš "shoulder;" Mid.Pers. dôš "shoulder;"
Av. daoš- "shoulder;" cf. Skt. dós- "shoulder." |
shoulder blade šâné (#), ketf (#) Fr.: omoplate → scapula. → shoulder; blade, M.E.; O.E. blæd "blade of grass;" cognate with Du. blad, Ger. Blatt. Šâné, ketf, → scapula. |
shower ragbâr, tondbâr (#) Fr.: 1) averse; 2) gerbe 1) A brief, abrupt precipitation from a cloud, characterized by the suddenness
with which it begins and ends and by the rapid changes in intensity. M.E. shour; O.E. scur "short fall of rain, fall of missiles or blows;" cf. O.N. skur, O.S., O.H.G. scur, Ger. Schauer. Ragbâr "cloudburst," from rag "cloudburst; thunder,"
→ rain + bâr "raining, rain," from bâridan,
→ rain. |
shower meteor šahâb-e bârâni, ~ ragbâri Fr.: météore de la pluie, ~ ~ l'averse A → meteor that is part of a group moving in the same orbit around the Sun. → meteor shower. |
shutter bastâr (#) Fr.: obturateur
1) A pair of rolling lids that are used to open or close the dome slit.
Same as → dome shutter. Shutter, from shut (v.), from O.E. scyttan from W.Gmc. *skutjanan + → -er. Bastâr, from bast, past tense stem of bastan + -âr. Bastan, from Mid.Pers. bastan/vastan "to bind, shut," Av./O.Pers. band- "to bind, fetter," banda- "band, tie," Skt. bandh- "to bind, tie, fasten," PIE *bhendh- "to bind," cf. Ger. binden, E. bind, → band. The suffix -âr creates agent nouns (as in xaridâr, virâstâr, foruxtâr, nemudâr, etc.). |
SI system râžmân-e SI Fr.: système international The system of → SI units. → SI units. |
SI units yekâhâ-ye SI Fr.: Système International A coherent and rationalized system of units, in common use in physics since 1969. The seven basic units are the → meter, the → kilogram, the → second, the → ampere, the → kelvin, the → mole, and the → candela. Same as international system of units. SI, from Fr. Système Internationale d'unités; → unit. |
sibling barxâ, hamšir (#) Fr.: enfant de mêmes parents A person's brother or sister. M.E., from O.E. sibling "relative, kinsman," from sibb "kinship, relationship; love, friendship," cf. O.Saxon sibba, M.Du. sibbe, O.H.G. sippa, Ger. Sippe "kin, related," Icelandic sifi "related." Barxâ, from bar- first sylaable of barâdar,
→ brother, + xâ-, short for
xâhar (xwâhar), → sister. |
sickle dâs (#) Fr.: faucille 1) An implement for cutting grain, grass, etc., consisting of a curved, hooklike
blade mounted in a short handle. M.E. sikel, O.E. sicol; cf. Du. sikkel, Ger. Sichel, ultimately from L. secula "sickle," from PIE root *sek- "to cut," → section. Das "sickle," Mid.Pers. dâs "sickle;" variant dahre, → scythe; Wakhi δətr, Parachi dêš "sickle;" ultimately from Proto-Iranian *dāθra-; cf. Skt. dātra- "sickle, scythe." |
Sickle of Leo Dâs-e Šir Fr.: Faucille du Lion A sickle-shaped → asterism forming the back of the Lion's head. It is marked by six stars: ε Leonis, μ Leonis, ζ Leonis, γ Leonis, η Leonis, and α Leonis (→ Regulus). |
side bar (#), pahku (#), kenâr (#) Fr.: côté 1) A line segment that forms part of the perimeter of a plane geometric figure. M.E., from O.E. side "flanks of a person, the long part of anything;" cf. O.S. sida, O.N. sitha, M.Du. side, O.H.G. sita, Ger. Seite. Bar "side; breadth; breast,"
variant var; Mid.Pers. var "breast;"
Av. vouru "wide, broad, extended" (vourucašāni- "looking far"),
related to varah- "breast;" cf. Skt. urú- "wide, broad,"
úras- "breast;" Gk. eurus "wide, broad;"
PIE base uer-, ueru-s "wide, broad." |
side lobe lap-e kenâri Fr.: lobe secondaire 1) In → radio astronomy,
smaller amounts of gain found either side of the main lobe. |
sideband bând-e kenâri, kenâr-bând Fr.: bande latérale Either of the two bands of frequencies, one just above (upper side) and one just below (lower side) a carrier frequency, that result from modulation of a carrier wave. Bând, → band; kenâr "side," variant karân "edge, limit;" Mid.Pers. karân, karânak, kenâr "edge, limit, boundary;" Av. karana- "side, boundary, end." |
sidereal axtari (#) Fr.: sidéral Of, relating to, or determined by or from stars. From M.Fr. sidereal, from L. sidereus "starry, astral," from sidus (genitive sideris) "star, constellation." Axtari, pertaining to axtar "star," probably a variant of setâré→ star. |
sidereal day ruz-e axtari (#) Fr.: jour sidéral The period of → Earth's rotation around its axis, the mean value of which is about 23h 56m 04.092s (23.934 470 hours). In other words, the interval between two successive passages of a star across a given → meridian. The sidereal day is 3 minutes 56 seconds shorter than the → mean solar day. The reason is that Earth moves a little less than a degree around the Sun during the time it takes for one full axial rotation. So, for the Sun to appear on the same meridian in the sky again after one full axial rotation, the Earth has to rotate one extra degree to bring the Sun into the same apparent meridian in the sky. This is also why the stars rise and set about 4 min earlier each day. |
<< < -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 > >>