An Etymological Dictionary of Astronomy and Astrophysics

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory



<< < -ph Pal pan par par par par pat peb Pen per per per per per pet pha Pho pho pho pho Pia Pis Pla pla pla pla ple poa pol pol pol pol pop pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul Pup > >>

Number of Results: 1076
propositional symbol
  نماد ِ گزاره‌ای   
nemâd-e gozâreyi

Fr.: symbole propositionnel   

An upper case letter, e.g. "A," "B," "C," etc. representing a → proposition. Propositional symbols are divisible into two sorts: → propositional constants and → propositional variables.

propositional; → symbol.

propositional variable
  ورتنده‌ی ِ گزاره‌ای   
vartande-ye gozâre-yi

Fr.: variable propositionnel   

Logic: A → propositional symbol that represents any → proposition whatsoever.

propositional; → variable.

pišrâneš (#)

Fr.: propulsion   

The act or process of propelling. The state of being propelled.

Verbal noun from → propel.


Fr.: propylène   

A colorless, flammable gaseous → hydrocarbon C3H6, also known as propene. It is found in coal gas and can be synthesized by cracking petroleum or by the dehydrogenation of propane.

From propyl (prop(ionic acid) + -yl) + -ene.

dâdsetân (#)

Fr.: procureur   

A person who institutes or conducts legal proceedings, especially in a criminal court.

M.L. prosecutor, agent noun from prosequi "follow after, accompany; chase, pursue;" from → pro- "forward" + sequi "to follow," → sequence.

Dâsetân, literally "justice obtainer," from dâd, → justice, + setân agent noun of setândan "to obtain, to take," from Mid.Pers. statan "to take, seize;" Av. (+ *fra-) frastan- "to take, convey forward;" Proto-Ir. *staHn- "to take;" cf. L. prae-stināre "to buy, fix a price" (Cheung 2007).

  ۱) فراگاس؛ ۲) فراگاسیدن   
1) farâgâs; 2) farâgâsidan

Fr.: 1) prospective; 2) prospecter   

1) The outlook for the future.
2) To explore a region for mineral deposits.

M.E. prospecte, from L. prospectus "view, outlook," from prospicere "look out on, look forward," from → pro- "forward" + specere "look at," → speculate.

Farâgâs, from farâ-, → pro-, + gâs "to look," → speculate.


Fr.: 1) en perspective; 2) éventuel   

1) Of or in the future.
2) Likely to be or become or come about.

From Fr. prospectif, from M.L. prospectivus, from L. prospect-, from prospicere, → prospect.

Adj. from farâgâs, → prospect.


Fr.: prospectus   

A formal statement that gives details of a forthcoming event.
A printed document describing something (such as attractions or services) to clients or members.

From L. prospectus "outlook, view," → prospect.

From farâgâs, → prospect, + nuance suffix .


Fr.: protactinium   

A → radioactive → chemical element which is a malleable, shiny silver-gray metal; symbol Pa. → atomic number 91; → mass number of most stable isotope 231; → melting point greater than 1,600°C; → boiling point 4,026°C; calculated → specific gravity 15.37; → valence +4, +5. Protactinium has 24 → isotopes of which only three are found in nature. The most stable is protactinium-231 (→ half-life about 32,500 years); it is also the most common, being found in nature in all uranium ores in about the same abundance as radium. The element was discovered by Otto Hahn and Lise Meitner, who found one of its isotopes in 1917. It was isolated in 1934, by Aristid von Grosse.

Protactinium, literally "parent of actinium," because actinium is a decay product of protactinium, from Gk. protos "first," → proto-, + → actinium.

protected bands
  باندهای ِ نگهداریده   
bândhâ-ye negahdâridé

Fr.: bandes protégées   

Certain frequencies, not used for civil or military purposes (radio, television, communication channels, etc.), which are protected for research in radioastronomy, one such being 21 cm.

Protected p.p. of protect, from L. protectus, p.p. of protegere "protect, cover in front," from → pro- "in front" + tegere "to cover;" → band.

Bând, → band; negahdâridé p.p. of negahdâridan, variant of negahdâštan "to keep, behold, preserve, take care of," from negah, negâh "watch, care, custody, look" + (Mid.Pers. nikâh "look, glance, observation;" Proto-Iranian *ni-kas- "to look down," from ni- "down" (cf. O.Pers. ni preposition and verbal prefix "down;" Av. "down, in ,into;" Skt. ni "down," nitaram "downward;" Gk. neiothen "from below;" E. nether; O.E. niþera, neoþera "down, downward, below, beneath," from P.Gmc. *nitheraz (O.S. nithar, O.N. niðr, O.Fris. nither, Du. neder, Ger. nieder); PIE *ni- "down, below") + *kas- "to look, appear;" cf. Av. nikā-, nikāta- (in the name of the 15-th nask) "that which is observed," ākas- "to look;" Mid.Pers. âkâh, Mod.Pers. âgâh "aware, knowing;" Skt. kāś- "to become visible, appear;" Ossetic kast/kaesyn "to look") + dâridan, dâštan "to have, hold, maintain, possess" (Mid.Pers. dâštan; O.Pers./Av. root dar- "to hold, keep back, maintain, keep in mind;" cf. Skt. dhr- "to to hold, keep, preserve," dharma- "law;" Gk. thronos "elevated seat, throne;" L. firmus "firm, stable;" Lith. daryti "to make;" PIE *dher- "to hold, support").

  ۱) پاخوس؛ ۲) پاخوسیدن   
1) pâxos; 2) pâxosidan

Fr.: 1) protestation; 2) protester   

1) An expression or declaration of objection, disapproval, or dissent, often in opposition to something a person is powerless to prevent or avoid.
2) To give manifest expression to objection or disapproval; remonstrate (

M.E., from O.Fr. protest, from preotester, and directly from L. protestari "to declare publicly, protest," from → pro- "forth, before" + testari "testify," from testis "witness."

Pâxos, literally "strike against," from pâ-, contraction of pâd- "agianst," → counter-, + xos "to strike," Gazi xos-, xus-, xûs- "to strike, throw;" Hamedani xostän, xus- "to throw", Khunsari xus- "to strike, throw," Kurd. (Sorani) xa-, (Kurmanji) xistin, xi- "to strike, beat," Qohrudi xosta "to throw," Ardestâni xoste, Shughni xust, xay-; Mid.Pers. xwas-, hws- "to trample;" Av. paiti xvanh- "to thresh;" Proto-Ir. *huah- "to strike, thresh" (Cheung 2007). ,


Fr.: protestant   

1a) (n.) An adherent of any of those Christian bodies that separated from the Church of Rome during the Reformation, or of any group descended from them.
1b) (originally) Any of the German princes who protested against the decision of the Diet of Speyer in 1529, which had denounced the Reformation.
1c) (lowercase) One who makes or enters a protests.
2a) (adj.) Belonging or pertaining to Protestants or their religion.
2b) (lowercase) protesting (

From Ger. or Fr. protestant, from L. protestantem (nominative protestans), p.p. of protestari, → protest.

Pâxosân agent noun or adj. from pâxosidan, → protest.

  پاخوسانگرایی، پاخوسان‌باوری   
pâxosângerâyi, pâxosânbâvari

Fr.: protestantisme   

The religion of → Protestants.

protestant; → -ism.


Fr.: protestation   

1) The act of protesting.
2) Formal expression or declaration of objection, dissent, or disapproval (

protest; → -tion.

  پاخوسگر، پاخوسنده   
pâxosgar, pâxosandé

Fr.: protestataire   

A person who publicly demonstrates opposition to something. Also protestor.

protest; → -er.


Fr.: Protée   

One of the largest of → Neptune's known moons discovered in 1989 by the Voyager 2 space probe. Proteus revolves around Neptune at a distance of about 92,800 km, completing one orbit in 26 hours, 54 minutes. Proteus is about 400 m in diameter, larger than → Nereid. Orbiting the planet in the same direction as Neptune rotates, Proteus remains close to Neptune's equatorial plane. Proteus is irregularly shaped and heavily cratered, but it shows no sign of geological modification. In fact Proteus is about as large as a satellite can be without being pulled into a spherical shape by its own gravity. Proteus is one of the darkest objects in the solar system. Like Saturn's moon Phoebe, Proteus reflects only six percent of the sunlight that it receives.

Originally designated S/1989 N 1, Proteus is named after the shape-changing sea god of Greek mythology.


Fr.: protium   

The lightest and most common → isotope of → hydrogen, with one → proton and no → neutrons; symbol 1H. See also → deuterium and → tritium.

From Gk. protos "first" + L. → -ium.


Fr.: proto-   

A combining form meaning "first, foremost, earliest form of," used in the formation of compound words such as → protogalaxy, → protoplanet, → protostar, etc.

From Gk. proto-, combining form of protos "first," superlative of pro "before," cognate with O.S. pruvu "first;" Rus. pervyy "first;" Av. pauruua-, as below.

Purvâ-, from O.Pers. paruviya- "former, initial," Av. pourva-, pouruuiia-, pauruua-, paoiriia- "first, initial, former;" cf. Skt. purva- "first, former, being before;" Tokharian B parwe "first;" PIE base *prwos "first."


Fr.: proto-Terre   

The planet Earth during its → protoplanetary stage.

proto-; → Earth.

Proto-Indo-European (PIE)

Fr.: proto-indoeuropéen   

The hypothetical but strongly evidenced common ancestor of the Indo-European languages. PIE words are reconstructed from extant Indo-European languages. There is no clear agreement on exactly where or when the speakers of PIE lived. It is believed that most of the subgroups diverged and spread out over much of Europe, Iran, and northern Indian subcontinent during the fourth and third millennia BC. See also → proto-language.

proto-; + Indo-, → Indus, + → European.

<< < -ph Pal pan par par par par pat peb Pen per per per per per pet pha Pho pho pho pho Pia Pis Pla pla pla pla ple poa pol pol pol pol pop pos pos pot pra pre pre pre pre pri pri pro pro pro pro pro pro pro pse pul Pup > >>