To cause to draw near or adhere by physical force.
L. attractus, p.p. of attrahere "to draw, to attract," from ad- "to" + trahere "to pull, draw."
Darkašidan, from dar- "in, into" + kašidan "to draw, attract," → galaxy.
The act or capability of attracting. A physical force (gravitational, electric, magnetic, etc.) exerted by material bodies.
Attraction, n. from → attract.
Having the quality of attracting.
Verbal adj. from → attract.
Fr.: force attractive
The physical body that attracts. → Great Attractor.
blue compact dwarf galaxy
kahkešân-e kutule-ye âbi-ye hampak
Fr.: galaxie naine bleue compacte
An small → irregular galaxy undergoing → violent star formation activity. These objects appear blue by reason of containing clusters of hot, → massive stars which ionize the surrounding interstellar gas. They are chemically unevolved since their → metallicity is only 1/3 to 1/30 of the solar value. Same as → H II galaxy.
Fr.: facteur de Boltzmann
The factor e-E/kT involved in the probability for atoms having an excitation energy E and temperature T, where k is Boltzmann's constant.
žireš-e muyiné, muyinegi
The ability of a → liquid to → flow in a → narrow space, such as a thin → tube, without the assistance of, and in opposition to, external forces like → gravity. Also called → capillarity. It occurs because of intermolecular → attractive forces between the liquid and solid surrounding surfaces. If the diameter of the tube is sufficiently small, then the combination of → surface tension (which is caused by → cohesion within the liquid) and → adhesion (between the liquid and the → container) acts to lift the liquid. The capillarity of the liquid is high when adhesion is greater than cohesion. For example, water in a thin glass tube has strong → adhesive forces due to the hydrogen bonds that form between the water molecules and the oxygen atoms in the glass wall (made of → silica, SiO2). In contrast, mercury is characterized by stronger cohesion, and hence its capillarity is much lower.
center of attraction
Fr.: centre d'attraction
A point toward which a force on a body is always directed.
vâžireš-e zanjiri, vâkoneš-e ~
Fr.: réaction en chaîne
A succession of → nuclear fissions when the neutrons released by previous fissions produce other nuclear fissions which themselves cause other reactions and the reactions goes on increasing exponentially.
1) serešt (#), sereštâr; 2) sereštâr; 3) daxšé (#)
Fr.: 1, 3) caractère; 2) personnage
1a) The aggregate of features and traits that form the individual nature of some person
M.E. carecter "distinctive mark," from O.Fr. caractère, from L. character, from Gk. kharakter "graving tool, its mark," from kharassein "to engrave," from kharax "pointed stick."
1, 2) Serešt "nature, temperament, constitution; mixed,"
sereštan "to mix, mingle; knead;" serišom "glue;"
Mid.Pers. srištan "to mix, knead;" cf. Av. ham-sriš-
"to put together;" Skt. śres- "to cling, stick, be attached;"
Proto-Ir. root *sraiš- "to put together, attach" (Cheung 2007).
1) serežtâr; 2) serežtâri
1a ) A distinguishing feature or quality.
Fr.: âge caractéristique
Of a pulsar, a normalized period of rotation assumed to be a good approximation to pulsar's true age.
Fr.: courbe caractéristique
Graph representing an optical film's response to the amount of light falling on it.
→ characteristic; → curve.
Fr.: équation caractéristique
Physics: An analytical relationship between a set of physical
variables that determines the state of a physical system.
Fr.: 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 thermal energy
kâruž-e garmâyi-ye sereštâri
Fr.: énergie thermique caractéristique
1) sereštâreš 2) tanumsâ sâzi
Fr.: 1) caractérisation; 2) représentation des caractères
1) The act of describing the character or qualities of someone or something.
1) To mark or distinguish as a characteristic; be a characteristic of.
vâžireš-e šimiyâyi, vâkoneš-e ~
Fr.: réaction chimique