# An Etymological Dictionary of Astronomy and AstrophysicsEnglish-French-Persian

## فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

### M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 6 Search : characteristic
 characteristic   ۱) سرشتار؛ ۲) سرشتاری   1) serežtâr; 2) serežtâriFr.: caractéristique   1a ) A distinguishing feature or quality. 1b) The integer part of a → common logarithm. For example, log10 (23) = 1.362, where the characteristic is 1 and the → mantissa is 0.362. 2) Pertaining to, constituting, or indicating the character or peculiar quality of a person or thing; typical; distinctive.→ character; → -istic. characteristic age   سن ِ سرشتاری   senn-e sereštâriFr.: âge caractéristique   Of a pulsar, a normalized period of rotation assumed to be a good approximation to pulsar's true age.→ characteristic; → age. characteristic curve   خم ِ سرشتاری   xam-e sereštâriFr.: courbe caractéristique   Graph representing an optical film's response to the amount of light falling on it.→ characteristic; → curve. characteristic equation   هموگش ِ سرشتاری   hamugeš-e sereštâriFr.: équation caractéristique   Physics: An analytical relationship between a set of physical variables that determines the state of a physical system. Math.: The equation which is solved to find a matrix's eigenvalues, also called the characteristic polynomial. characteristic mass   جرم ِ سرشتاری   jerm-e sereštâriFr.: masse caractéristique   A typical or most likely mass for the formation of an astronomical object. In current star formation models, it is of order of a few tenths of a → solar mass.→ characteristic; → mass. characteristic thermal energy   کاروژ ِ گرمایی ِ سرشتاری   kâruž-e garmâyi-ye sereštâriFr.: énergie thermique caractéristique   The quantity kT in the → Maxwell-Boltzmann distribution law, where k is → Boltzmann's constant and T the gas temperature. See also → thermal energy.→ characteristic; → thermal; → energy