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: 1327
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.

compound
  ۱) همنات؛ ۲) همناتیدن   
1) hamnât; 2) hamnâtidan

Fr.: 1) composé; 2) composer   

1a) General: Consisting of two or more separate substances, ingredients, elements, or parts. A compound usually constitutes a new and independent entity with regard to its components. → composite, → combination.
1b) Chemistry: A substance whose molecules are made up of at least two different elements.
1c) Linguistics: A word consisting of two or more independent elements such as sunflower, eyeball, football.
2a) To combine so as to form a whole; mix.
2b) To produce or create by combining two or more ingredients or parts; compose or make up.

M.E. compouned, p.p. of compounen, M.Fr. compon-, stem of compondre, from L. componere, → compose.

Hamnât, literally "placed together," from ham- "together," → com-, + nât "placed, put," variant of nâd, nâde, from Lori nâdan "to place, put" (Tabari da-nâyan "to place, put"), variant of nehâdan "to place, put," → compose.

compound angle
  زاویه‌ی ِ همنات   
zâviye-ye hamnât

Fr.: angle composé   

An angle that results from the combination of two other angles. These angles are expressed by → compound angle formulae.

compound; → angle.

compound angle formula
  دیسول ِ زاویه‌ی ِ همنات   
disul-e zaviye-ye hamnât

Fr.: formule d'angle composé   

One of eight equations that give the → trigonometric functions of → compound angles.
sin(A± B) = sinA.cosnd angleB± cosA.sinB
cos(A + B) = cosA.cosB - sinA.sinB
cos(A - B) = cosA.cosB + sinA.sinB
tan(A + B) = (tanA + tanB)/(1 - tanA.tanB)
tan(A - B) = (tanA - tanB)/(1 + tanA.tanB).

compound; → angle; → formula.

compound curve
  خم ِ همنات   
xam-e hamnât

Fr.: courbe composée   

A curve that is made up of a series of successive tangent circular arcs.

compound; → curve.

compound event
  رویداد ِ همنات   
ruydâd-e hamnât

Fr.: événement composé   

In statistics, an event whose probability of occurrence depends upon the probability of occurrence of two or more independent events.

compound; → event.

compound fraction
  برخه‌ی ِ همنات   
barxe-ye hamnât

Fr.: fraction composée   

Same as → complex fraction.

compound; → fraction.

compound lens
  عدسی ِ همنات   
adasi-ye hamnât

Fr.: lentille composée   

A lens system consisting of two or more lenses with the same radius used together in order to remove aberrations found in a single lens.

compound; → lens.

compound nucleus
  هسته‌ی ِ همنات   
hasteh-ye hamnât

Fr.: noyau composé   

A temporary excited state of the atomic nucleus which results from the collision of an incident energetic particle with a target nucleus. Subsequently the nucleus decays by emitting particle(s).

compound; → nucleus.

compound number
  عدد ِ همنات   
adad-e hamnât

Fr.: nombre composé   

A quantity expressed as the sum of two or more quantities of differing units. For example 5 hours and 15 minutes or 4 meters and 20 centimeters. → composite number.

compound; → number.

compound proposition
  گزاره‌ی ِ همنات   
gozâre-ye hamnât

Fr.: proposition composée   

A statement formed from simple statements by the use of words such as "and," "or," "not," "implies," or their corresponding symbols.

compound; → proposition.

compound verb
  کرواز ِ همنات   
karvâz-e hamnât

Fr.: verbe composé   

A verb that is made up of several words, such as tear up, take away, double-click.

compound; → verb.

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