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

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 1302
condition
  بوتار   
butâr

Fr.: condition   

1) Physics: The state of a physical system at a given time. Also called → physical condition.
2) Math: A premise, statement, or restriction upon which a mathematical result or consequence depends. → initial conditions; → boundary conditions.

From O.Fr. condition, from L. condicionem (nom. condicio) "agreement, situation," from condicere "to speak with, talk together," from → com- "together" + dicere "to speak," from PIE *deik- "to point out;" cf. Av. daēs- "to show; assign; make known," Skt. dis- "to show, point toward," disati "shows," Gk. deiknunai "to show," O.H.G. zeigon, Ger. zeigen "to show," E. token "indication, sign."

Butâr, from Mid.Pers. but past tense stem of butan Mod.Pers. budan "to be, become," → exist, + -âr noun suffix (as in raftâr, jostâr, goftâr, kerdâr).

conditional
  بوتاری، بوتارمند   
butâri, butârmand

Fr.: conditionnel   

1) Imposing, containing, subject to, or depending on a condition or conditions; not absolute; made or allowed on certain terms.
2a) Logic: (of a proposition) Asserting that the existence or occurrence of one thing or event depends on the existence or occurrence of another thing or event.
2b) (of a → syllogism) Containing at least one → conditional proposition as a → premise (Dictionary.com).
2c) The "if ... then" relation.

condition; → -al.

conditional introduction
  اندرهازش ِ بوتاری   
andarhâzeš-e butâri

Fr.: introduction conditionnelle   

A derivation rule that begins with an → assumption in a → subproof and allows for deriving a conditional outside the subproof. The derived conditional consists of the assumed proposition as the → antecedent and the derived conclusion in the subproof as the → consequent.

conditional; → introduction.

conditional probability
  شوانایی ِ بوتاری   
šavânâyi-ye butâri

Fr.: probabilité conditionnelle   

Of an event B in relationship to an event A, the probability that event B occurs given that event A has already occurred. The notation for conditional probability is P(B|A), read as the probability of B given A: P(B|A) = P(A ∩ B)/P(A). → Bayes' theorem.

conditional; → probability.

conditional proof
  آوین ِ بوتاری   
âvin-e butâri

Fr.: preuve conditionnelle   

A → proof in which one assumes the → truth of one of the → premises to show that if that premise is true then the → argument is → valid.

conditional; → proof.

conditional proposition
  گزاره‌ی ِ بوتاری   
gozâre-ye butâri

Fr.: proposition conditionelle   

A compound → proposition in which one → clause asserts something as true provided that the other clause is true. A conditional statement consists of two parts, a hypothesis in the "if" clause and a conclusion in the "then"clause. For instance, "If it rains, then they cancel school." It rains is the hypothesis. "They cancel school" is the conclusion. The clause following if is traditionally called the → antecedent, whereas the clause following then is called the → consequent.

conditional; → proposition.

conduct
  هاختن، هازیدن   
hâxtan, hâzidan

Fr.: conduire   

(v.tr.) To direct the course of; to lead or guide. To serve as a medium for conveying; transmit.
(v.intr.) To act as a conductor.

From L. conductus, p.p. of conducere "to lead or bring together," from → com- "together" + ducere "to lead."

Hâxtan, hâzidan, from Mid.Pers. "to lead, guide, persuade," Av. hak-, hacaiti "to attach oneself to, to join," cf. Skt. sacate "accompanies, follows," Gk. hepesthai "to follow,", L. sequi "to follow;" PIE *sekw-.

conductance
  هازایی   
hâzâyi

Fr.: conductance   

The ability of a system to conduct electricity, calculated as the ratio of the current which flows to the potential difference present. This is the reciprocal of the → resistance, and is measured in → siemens or → mhos.

conduct + → -ance.

conduction
  هازش   
hâzeš

Fr.: conduction   

The transference of energy through a body, without visible motion of any part of the body. → induction; → reduction; → subduction; → transduction.

Verbal noun from → conduct.

conduction electron
  الکترون ِ هازش   
elektron-e hâzeš

Fr.: électron de conduction   

An electron whose energy lies in the conduction band of a solid, where it is free to move under the influence of an electron field.

conduction; → electron.

conduction band
  باند ِ هازش   
bând-e hâzeš

Fr.: bande de conduction   

In the energy spectrum of a solid, a range of energies in which electrons can move freely under the influence of an electrical field. Metals have many electrons in this range, insulators have none. In semiconductors the conduction band contains few electrons provided by impurity atoms or ejected from the valence bands by thermal energy or photon absorption.

conduction; → bande.

conductive
  هازنده   
hâzandé

Fr.: conducteur   

(Adj.) Having the property or capability of conducting.

From → conduct + -ive a suffix of adj.

conductivity
  هازندگی   
hâzandegi

Fr.: conductivité   

1) General: A measure of the ability to transmit, as electricity, thermal energy, sound, and so on.
2) → electrical conductivity.
3) → thermal conductivity.

From → conductive + → -ity suffix forming abstract nouns expressing state or condition.

conductor
  هازنده   
hâzandé

Fr.: conducteur   

Substance, or body, which offers a relatively small resistance to the passage of an electric current.

Agent noun from conduce, → conduct, + → -tor.

cone
  مخروط   
maxrut (#)

Fr.: cône   

A solid bounded by a plane and the surface generated by a straight line which always touches a simple closed curve on the plane and passes through a fixed point not on the plane.

L. conus "a wedge, peak, cone," from Gk. konos "cone, spinning top, pine cone," from PIE base *ko(n)- "to sharpen."

Maxrut from Ar.

confederation
  هم‌هیاوش   
ham-hiyâveš

Fr.: confédération   

A body comprising independent organizations that cooperate for a common purpose.

com-; → federation.

confess
  خستوییدن، خستو شدن   
xastuyidan, xastu šodan (#)

Fr.: avouer   

To acknowledge or avow (a fault, crime, misdeed, weakness, etc.) by way of revelation (Dictionary.com).

M.E. confessen, from Old French confesser (transitive and intransitive), from Vulgar Latin *confessare, from Latin confess-, past participle stem of confiteri "to acknowledge," from assimilated form of com "together" (see com-) + fateri "to admit," akin to fari "speak," from PIE root *bha- (2) "to speak, tell, say."

Xastuyidan, infinitive from xastu, → confessor.

confession
  خستویش   
xastuyeš

Fr.: aveu   

1) Something that is confessed.
2) Acknowledgment or disclosure of sin or sinfulness, especially to a priest to obtain absolution (Dictionary.com).

Verbal noun of → xastuyidan, "to → confess."

confessor
  خستو   
xastu (#)

Fr.: avouant   

A person who makes a confession.

confess; → -or.

Xastu "a person who makes a confession, confessing," from Mid.Pers. xwastûg "confessing," xwastûgih "confession;" ultimately from *xva.stavana-, from *xva- "own, one's own," + *stau- "to paray, celebrate (in songs), praise" (Pers. sotudan/setây- "to praise"); cf. Av. stau-, stû- "to praise" (āstau- "to confess"); Skt. stav- "to honour, praise;" Gk. steutai "announces solemnly, boasts."

configuration
  همپیکرش   
hampeykareš (#)

Fr.: configuration   

General: Arrangement of parts or elements in a composite object.
Physics: The distribution of electrons in the various atomic orbital and energy levels.

L.L. configuration, configuratio "similar formation," from L. configurare "to form from or after," from → com- + figurare "to form," from figura "figure."

Hampeykareš (verbal noun from hampeykaridan), from ham-, → com-, + peykar "figure, form, mould, body" + noun suffix -eš. Peykar from Mid.Pers. pahikar "picture, image," from O.Pers. patikara- "picture, (sculpted) likeness," from patiy "against" (Av. paiti, Skt. prati, Gk. poti/proti) + kara- "doer, maker," from kar- "to do, make, build," Av. kar-, Skt.. kr-; cf. Skt. pratikrti- "an image, likeness, model; counterpart."

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