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

<< < Q i qua qua qua que > >>

Number of Results: 94
quality
  چونی   
cuni (#)

Fr.: qualité   

1) The general standard or grade of something.
2) → image quality.
3) → sound quality.

M.E. qualite, from O.Fr. qualite (Fr. qualité), from L. qualitas, from qual(is) "of what sort?" + → -ity.

Cuni, from Mid.Pers. cigôn "how?," cigônêh "nature, character," O.Pers/Av. ci- "what, any," collateral stem to ka- "who?, what?" (cf. Skt. ka-; Gk. po-; L. quo-; E. what, who; PIE *qwos/*qwes) + Av. gaona- "color" (Mid.Pers. gônak "kind, species").

quanta
  کو‌آنتوم‌ها   
kuântomhâ (#)

Fr.: quanta   

Plural of → quantum.

L. plural of quantum.

Kuântomhâ, from kuântom, → quantum + -hâ plural suffix.

quantification
  چندیکرد   
candikard

Fr.: quantification   

The fact or process of quantifying (→ quantification).

Verbal noun of → quantify.

quantifier
  چندیگر   
candigar

Fr.: quantificateur   

1) 1) A word that indicates the quantity of something.
2) Math.: A phrase in a logical expression that somehow specifies the quantity of variables. In particular either of the phrases "for all" (written symbolically as ∀) and "there exists" (∃).
3) In → predicate logic, a symbol that applies to, or binds, → variables which represent the → arguments of → predicates. See also → existential quantifier and → universal quantifier. In → first-order logic theses variables must range over → individuals. In higher-order logics they may range over predicates.

Agent noun of → quantify

quantify
  چندی‌کردن   
candi kardan

Fr.: quantifier   

1) To express as a number or amount. 2) In predicate logic: To express by a → symbol how many of the → individuals have the property in common.

M.L. quantificare, from to L. quant(us) "how much?" + -ificare "-ify."

Candidan infinitive of candi, → quantity + -idan.

quantitative
  چندی‌مند   
candimand

Fr.: quantitatif   

Dealing with quantities as well as the nature of the substances under consideration.

From L.L. quantitativus, from quanitat- + -ivus "-ive."

Candimand, from candi, → quantity, + -mand possession, attribute suffix from Mid.Pers. -mand, -ômand; Av. -mant- (xratumant- "having wisdom," Mod.Pers. xeradmand, arəθamant- "right, true to fact," maδumant- "containing wine, honey, rich in sweets"); cf. Skt. -mant-.

quantitative analysis
  آنالس ِ چندی‌مند   
ânâlas-e candi-mand

Fr.: analyse quantitative   

The analysis of a chemical sample to derive its precise percentage composition in terms of elements, radicals, or compounds.

quantitative; → analysis.

quantity
  چندی   
candi (#)

Fr.: quantité   

The property of magnitude.
An entity having magnitude, size, extent, or amount.

M.E., from rom O.Fr. quantite (Fr. quantité), from L. quantitatem (nominative quantitas), from quant(us) "how much?" + -itas, → -ity.

Candi "quantity," from Mid.Pers. candih "amount, quantity," from cand "how many, how much; so many, much;" O.Pers. yāvā "as long as;" Av. yauuant- [adj.] "how great?, how much?, how many?," yauuat [adv.] "as much as, as far as;" cf. Skt. yāvant- "how big, how much;" Gk. heos "as long as, until."

quantization
  کو‌آنتومش   
kuântomeš (#)

Fr.: quantification   

1) The procedure of restricting a continuous quantity to certain discrete values.
2) Physics: The procedure of deriving the quantum-mechanical laws of a system from its corresponding classical laws.

Verbal noun of → quantize.

quantize
  کو‌آنتومیدن   
kuântomidan (#)

Fr.: quantifier   

Math.: To restrict a variable quantity to discrete values rather than to a continuous set of values.
Physics: To change the description of a physical system from classical to quantum-mechanical, usually resulting in discrete values for observable quantities, as energy or angular momentum.

From quant(um) + → -ize.

From kuântom, → quantum, + -idan infinitive suffix.

quantized
  کو‌آنتومیده   
kuântomidé (#)

Fr.: quantifié   

1) Capable of existing in only one of several states.
2) Of or pertaining to discrete values for → observable quantities.

P.p. of → quantize.

quantizer
  کو‌آنتومنده   
kuântomandé (#)

Fr.: quantificateur   

A device with a limited number of possible output values hat can translate an incoming signal into these values or codes for outputting.

Agent noun of → quantize.

quantum
  کو‌آنتوم   
kuântom (#)

Fr.: quantum   

The smallest amount of energy that can be absorbed or radiated by matter at a specified frequency (plural quanta). It is a → discrete quantity of energy associated with a wave of frequency ν, where h represents the → Planck's constant.

Quantum "a particular amount," from L. quantum "how much," neuter singular of quantus "how great." Introduced in physics by Max Planck (1858-1947) in 1900.

quantum censorship
  سانسور ِ کو‌آنتومی   
sânsur-e kuântomi

Fr.: censure quantique   

A concept whereby properties of objects vary according to the energy with which they are probed. An atomic system in its → ground state tends to remain as it is if little energy is fed in, betraying no evidence of its internal structure. Only when it is excited into a higher state do complexities emerge. This is the essence of quantum censorship. Thus, below an energy threshold, atoms appear to be impenetrable. Above it, their components can be exposed (F. Wilczek, 2013, Nature 498, 31).

quantum; censorship, from censor, from M.Fr. censor and directly from L. censor "a Romain magistrate who kept the register or census of the citizens, and supervised morals," from censere "to appraise, value, judge," from PIE root *kens- "to speak solemnly, announce;" cf. Av. səngh- (sanh-) "to declare, explain;" Pers. soxan "word, speech;" Skt. śams- "to praise, recite."

quantum chromodynamics
  رنگ-توانیک ِ کو‌آنتومی   
rangtavânik-e kuântomi

Fr.: chromodynamique quantique   

The → quantum field theory that deals with the → strong interaction and the structure of elementary particles in the framework of → quantum theory. The cohesive attraction between the → quarks, that constitute → hadrons, involves the participation of three particles. Each of these particles is assigned a different → color "charge." The existence of these "charges" requires a multiplicity of different messenger particles to communicate the interaction and glue the quarks together. These messengers are called → gluons and there are eight different types.

quantum; → chromodynamics

quantum computer
  رایانگر ِ کو‌آنتومی   
râyângar-e kuântomi

Fr.: ordinateur quantique   

A type of computer, as yet hypothetical, that uses quantum mechanical laws, such as the → superposition principle and the → quantum entanglement, to perform calculations based on the behavior of particles at the → subatomic level. A quantum computer would gain enormous processing power through the ability to be in multiple states, and to perform tasks using all possible permutations simultaneously.

quantum; → computer.

quantum defect
  کاست ِ کو‌آنتومی   
kâst-e kuântomi

Fr.: défaut quantique   

Of an atomic energy level, the difference between the principal quantum number and the effective quantum number.

quantum; → defect.

quantum efficiency
  کارایی ِ کو‌آنتومی   
kârâi-ye kuântomi

Fr.: efficacité quantique   

In a detector, the ratio of the number of photoelectrons released to the number of incident photons at a specific wavelength.

quantum; → efficiency.

quantum electrodynamics (QED)
  برقاتوانیک ِ کو‌آنتومی   
barqâtavânik-e kuântomi

Fr.: électrodynamique quantique   

The → quantum field theory that describes the properties of → electromagnetic radiation and its interaction with electrically charged matter in the framework of → quantum theory.

quantum; → electrodynamics.

quantum entanglement
  هم‌گورش ِ کو‌آنتومی، هم‌پیچی ِ ~   
ham-gureš-e kuântomi, ham-pici-ye ~

Fr.: emmêlement quantique, intrication ~   

A quantum → phenomenon that occurs when two or more particles (→ photons or → atomic particles) that have a common origin remain linked together when they travel apart. A measurement of one of the particles determines not only its → quantum state but the quantum state of the other particle as well. A change in one is instantly reflected in the other. See also → EPT paradox.

quantum; → entanglement.

<< < Q i qua qua qua que > >>