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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Number of Results: 13048 Search : far
activism
  ژیرش‌گری، ژیرش‌باوری   
žireš-gari, žireš-bâvari

Fr.: activisme   

1) The doctrine or practice of vigorous action or involvement as a means of achieving political or other goals, sometimes by demonstrations, protests, etc. (Dictionary.com). See also → activist.
2) Philosophy: a) A theory that the essence of reality is pure activity, especially spiritual activity, or process. b) A theory that the relationship between the mind and the objects of perception depends upon the action of the mind (Dictionary.com).

active; → action; → -ism.

activist
  ژیرش‌گر، ژیرش‌باور   
žireš-gar, žireš-bâvar

Fr.: activiste   

An especially active, vigorous advocate of a cause, especially a political cause (Dictionary.com).

Agent noun from → activism.

activity
  ژیرایی، ژیرندگی   
žirâyi, žirandegi

Fr.: activité   

For a radioactive substance, the average number of atoms disintegrating per unit time.

Activity, from → active + -ity.

Žirandegi, noun from žirandé, → active.

actor
  ژیرگر   
žirgar

Fr.: acteur   

1) One who takes part; a participant.
2) A theatrical performer.

act + → -or.

actual
  ژیروند   
žirvand

Fr.: actuel   

1) Existing in act or fact; real.
2) Philosophy: The character of what is realized in act (such as a statue), as opposed to what can potentially be realized (from a piece of rock).

M.E. actuel, from O.Fr. actuel "now existing, up to date," from L. actualis "active, pertaining to action," adj. form of actus, → act.

Žirvand, from žir, → act, + -vand a suffix forming adjectives denoting "possessed of, similarity, relation," variants -âvand, -van (e.g. xodâvand "possessor, master," pulâdvand "hard as steel, name of a hero," dowlatvand "rich," setarvan "mule-like, barren," polvan "bridge-like, a raised path"), from Mid.Pers. -âwand (hunarâwand "skilled," warzâwand "powerful"); Av. -vant (aurvant- "swift," surunvant- "audible"); cf. Skt. -vant (amavant- "having attacking power").

actuality
  ژیروندی   
žirvandi

Fr.: actualité   

1) The quality or state of being actual or something that is actual; reality.
2) Philosophy: According to Aristotle, what has → form and can causally interact with other things, as opposed to → potentiality.

actual; → -ity.

actualization
  ژیروندش، ژیروند‌کرد   
živandeš, živandkard

Fr.: actualisation   

The act or process of actualizing.

Verbal noun of → actualize; → -tion.

actualize
  ژیروندیدن، ژیروند کردن   
žirvandidan, žrivand kardan

Fr.: actualiser   

To make actual or real; turn into action or fact.

actual; → -ize.

actuate
  برژیریدن   
baržiridan

Fr.: actionner, déclencher   

1) To put into mechanical action or motion.
2) To incite or move to action; motivate.

From L. actuatus, p.p. of actuare, from actus, → act.

Baržiridan, from bar- "on, upon, up," → on-, + žiridan "to → act."

actuation
  برژیرش   
baržireš

Fr.: actionnement, déclenchement   

The act or process of putting into action; activation.

Verbal noun of → actuate.

actuator
  برژیرگر   
baržirgar

Fr.: actuateur   

A mechanism to activate process control equipment by use of pneumatic, hydraulic, or electronic signals.

actuate; → -or.

acuity
  تیزنایی   
tiznâyi (#)

Fr.: acuité   

Sharpness; acuteness; keenness of perception.

M.E., from M.Fr. acuité, from M.L. acuitatem (nom. acuitas) "sharpness," from L. acus "needle," acuere "to sharpen," from PIE root *ak- "be sharp."

Tiznâ "sharpness," from tiz, "→ sharp," + -nâ, a suffix that transforms adjective into noun (compare with tangnâ, derâznâ, farâxnâ, etc.).

acuity of vision
  تیزنایی ِ دید   
tiznâ-ye did

Fr.: acuité visuelle   

The ability of the → eye to see separately two points close to each other. It is a measure of the → resolving power of the eye's → optical system and depends on the density of cells in the → retina. The maximum acuity of the normal human eye is around 0.5 minutes of arc.

acuity; → vision.

ad hoc
  پدیم   
pad im

Fr.: ad hoc   

For the specific purpose at hand, as opposed to a general solution; also, by extension, improvised or impromptu.

From L. ad "to, with, in," cf. Skt. adhi "near," PIE *ad- "to, near, at."

Pad im, from Mid.Pers. pad "to, at, for, in" (Mod.Pers. "to, for, in, on, with, by"); O.Pers. paity "agaist, back, opposite to, toward, face to face, in front of;" Av. paiti "to, toward, in, at;" cf. Skt. práti "toward, against, again, back, in return, opposite;" Pali pati-; Gk. proti, pros "face to face with, toward, in addition to, near;" PIE *proti) + Mid.Pers. im "this;" from Old.Pers./Av. ima "this;" Skt. imá; cf. Lori (Laki) im "this side." The Mid.Pers. im occurs in Mod.Pers. as em- in emruz "today," emšab "tonight," and emsâl "this year."

ad hoc hypothesis
  انگاره‌ی ِ پدیم   
engâre-ye pad im

Fr.: hypothèse ad hoc   

Addition of adjustments to a theory to save it from being falsified by compensating for anomalies not anticipated by the theory in its unmodified form. Theories that rely on continual, ad hoc adjustments are distrusted.

ad hoc; → hypothesis.

ad hominem
  پد مرت   
pad mart

Fr.: ad hominem   

A fallacious objection to an argument or factual claim by appealing to a characteristic or belief of the person making the argument or claim, rather than by addressing the substance of the argument or producing evidence against the claim (wiktionary).

Literally "to a man," from → ad- "to," + hominem, accusative of homo "man," → human.

Pad mart, literally "to a man," from pad "to," → ad hoc, + mart, → man.

adapt
  نیاویدن   
niyâvidan

Fr.: adapter, s'adapter   

To make suitable to or fit for a specific use or situation.

From M.Fr. adapter, from L. adaptare "adjust," from ad- "to" + aptare "join," from aptus "fitted."

Niyâvidan from Mid. Pers. niyâw "apt, suitable, appropriate" + -idan verb making suffix.

adaptable
  نیاویدنی، نیاوش‌پذیر   
niyâvidani, niyâveš-pazir

Fr.: adaptable   

Capable of adapting or of being adapted.

adapt + → -able.

adaptation
  نیاوش   
niyâveš

Fr.: adaptation   

1) The act or process of adapting.
2) The state of being adapted.

adapt.

adaptation of the eye
  نیاوش ِ چشم   
niyâveš-e cašm

Fr.: adaptation de l'oeil   

Physiological process whereby the eye adjusts its sensitivity for different levels of illumination.

adaptation, → eye.

<< < -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 > >>