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

<< < -ci cal Cam can car Car cat cat CCD Cen cen CH cha cha che cho cir cir cis cla clo clo CN coa coh col col col com com com com com com com com con con con con con con con con con con con coo Cor cor cor cos cos Cou cou cre cri cro cry Cup cus cyc > >>

Number of Results: 1234
complete set
  هنگرد ِ اسپر   
hangard-e ospor

Fr.: ensemble complet   

Quantum mechanics: A set of states such that any state can be represented as a superposition of them.

complete; → set.

completeness
  اسپری   
ospori

Fr.: complétude   

1) The state of being complete and entire.
2) Logic: The condition of a → formal system if every → valid  → inference is → provable by means of the rules of the system.

From → complete + → -ness.

completeness magnitude
  برز ِ اسپری   
borz-e ospori

Fr.: magnitude de complétude   

In photometric studies of a → population of astronomical objects (usually stars or galaxies), the magnitude that represents the faintest members of the population.

completeness; → magnitude.

complex
  همتافت   
hamtâft (#)

Fr.: complexe   

1) General: (n. & adj.) A whole comprised of many elements. → complex wave.
2) (adj.) Complicated and hard to solve.
3) Math: Pertaining to or using → complex numbers.

From Fr. complexe, from L. complexus "surrounding, encompassing," p.p. of complecti "to embrace, encompass, include," from → com- "together" + plectere "to weave, twine."

Hamtâft, from ham- "together," → com- + tâft past stem of tâftan, tâbidan "to twist, to spin, to bend, to crook," p.p. tâftah "spun, silk or linen cloth," loaned into E. taffeta (from O.Fr. taffetas, from It. taffeta); similarly Gk. tapetion "little carpet" is probably from this Iranian origin (from which tapestry, tapis); Proto-Ir. *tap- "to spin," related to tan-, tanidan "to spin; to stretch," → tension.

complex conjugate
  همیوغ ِ همتافت   
hamyuq-e hamtâft (#)

Fr.: conjugé   

A → complex number in which the → real part of the number remains the same, but i is replaced by -i. For example, the complex conjugate of x + iy is x - iy. Same as → conjugate complex number.

complex; → conjugate.

complex dynamical variable
  ورتنده‌ی ِ توانیک ِ همتافت   
vartande-ye tavânik-e hamtâft

Fr.: variable dynamique complexe   

A → dynamical variable which has an → imaginary number part.

complex; → dynamical; → variable.

complex Fourier series
  سری ِ فوریه‌ی ِ همتافت   
seri-ye Fourier-ye hamtâft

Fr.: série de Fourier complexe   

The complex notation for the → Fourier series of a function f(x). Using → Euler's formulae, the function can be written in cimplex form as f(x) = Σ cn einx (summed from -∞ to ∞), where the → Fourier coefficients are cn = (1/2π)∫ f(x) e-inx dx (integral from -π to +π).

complex; → Fourier series.

complex fraction
  برخه‌ی ِ همتافت   
barxe-ye hamtâft

Fr.: fraction complexe   

A fraction in which the → numerator or → denominator, or both, contain fractions. For example (3/5)/(6/7). Also called → compound fraction.

complex; → fraction.

complex molecule
  مولکول ِ همتافت   
molekul-e hamtâft

Fr.: molécule complexe   

A molecule in the → interstellar medium comprising at least six atoms (e.g. Herbst & van Dishoeck, 2009, ARA&A).

complex; → molecule.

complex number
  عدد ِ همتافت   
adad-e hamtâft (#)

Fr.: nombre complexe   

Any number of the form u = a + bi, where a and b are → real numbers and i imaginary, i.e. i2 = -1.

complex; → number.

complex organic molecule (COM)
  مولکول ِ ارگانیک ِ همتافت   
molekul-e orgânik-e hamtâft

Fr.: molécule organique complexe   

A → complex molecule containing C, H, O, and N atoms and involved in life developing processes. See also → organic molecule.

complex; → organic; → molecule.

complex population
  پرینش ِ همتافت   
porineš-e hamtâft

Fr.: population complexe   

Same as → composite population.

complex; → population.

complex wave
  موج ِ همتافت   
mowj-e hamtâft (#)

Fr.: onde complexe   

A wave that is composed of several frequencies.

complex; → wave.

component
  همنه   
hamneh (#)

Fr.: composante   

A constituent part; an individual part of an organized whole.
One of two or more vectors having a sum equal to a given vector.

L. componentem, pr.p. of componere "to put together," → compose.

Hamneh from ham- "together," → com- + neh present tense stem of nehâdan "to put, place," → compose.

compose
  همنهادن   
hamnehâdan (#)

Fr.: composer   

To create or form by putting together things, parts, or elements.

From O.Fr. composer "put together, arrange," from → com- "together" + poser "to place," from L. ponere "to put, place."

Hamnehâdan from ham-, → com-, + nehâdan "to put, place," Mid.Pers. nihâtan, Av. ni- "down; into," → ni- (PIE), + dâ- "to put; to establish; to give," dadâiti "he gives," cf. Skt. dadâti "he gives," Gk. didomi "I give," L. do "I give;" PIE base *do- "to give."

composite
  همنهاده   
hamnehâdé (#)

Fr.: composite   

Made up of distinct components. The components may retain part of their identities. → compound, → combination.

From O.Fr. composite, from L. compositus, p.p. of componere "to put together," → compose.

Hamnehâdé, p.p. of hamnehâdancompose.

composite number
  عدد ِ همنهاده   
adad-e hamnehâdé

Fr.: nombre composite   

A whole number which is the product of whole numbers other than itself and 1. The opposite of prime number. → compound number.

composite; → number.

composite population
  پرینش ِ همنهاده   
porineš-e hamnehâdé

Fr.: population composite   

A stellar population consisting of more than one → simple population. Also called complex population.

composite; → population.

composite spectrum
  بیناب ِ همنهاده   
binâb-e hamnehâdé

Fr.: spectre composite   

A stellar spectrum displaying lines characterising two stars of different types.

composite; → spectrum.

composition
  همنهش   
hamneheš (#)

Fr.: composition   

1) General: The act or manner of composing; the result or product of composing.
2) Chemistry: The proportion of the elements of which a substance is made up.
3) Mechanics: The determination of a force whose effect is the same as that of two or more given forces acting simultaneously.

Hamnehesh, from ham-, → com-, + neheš verbal noun from nehâdan "to put, place," → compose.

<< < -ci cal Cam can car Car cat cat CCD Cen cen CH cha cha che cho cir cir cis cla clo clo CN coa coh col col col com com com com com com com com con con con con con con con con con con con coo Cor cor cor cos cos Cou cou cre cri cro cry Cup cus cyc > >>