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

Having the qualities, accomplishments, etc., that fit a person for some function, office, or the like (Dictionary.com).

Past participle of → qualify.

1) Be entitled to a particular benefit or privilege by fulfilling a necessary condition; become officially recognized as a practitioner of a particular profession or activity, typically by undertaking a course and passing examinations.
2) Officially recognize or establish (someone) as a practitioner of a particular profession or activity (OxfordDictionaries.com).

→ quality; → -fy.

Pertaining to or concerned with quality or qualities.

From L.L. qualitativus, from qualitat- + -ivus, → -ive.

Cunik, from cuni, → quality, + -ik, → -ic.

A distinguishing characteristic, property, or attribute 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.

Cunâ, 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").

Plural of → quantum.

L. plural of quantum.

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

The fact or process of quantifying.

Verbal noun of → quantify.

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

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."

Candâyidan infinitive of candâ, → quantity + -idan.

Relating to, measuring, or measured by the quantity of something rather than its → quality (OxfordDictionaries.com).

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

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

→ quantitative; → analysis.

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.

Candâ, candi "quantity," 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."

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.

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.

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

P.p. of → quantize.

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.

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 hν 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.

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."

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

In quantum physics, a situation where an object's wave property is split in two, and the two waves coherently interfere with each other in such a way as to form a single state that is a superposition of the two states. This phenomenon is based on the fact that atomic particles have wave-like properties. Quantum coherence is in many ways similar to → quantum entanglement, which involves the shared states of two quantum particles instead of two quantum waves of a single particle. Quantum coherence and quantum entanglement are both rooted in the → superposition principle.

→ quantum; → coherence.

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.